diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
index cf50f6cad..5b0793725 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
@@ -10,3 +10,56 @@ test("Classifies right angles", () => {
   const right = getAngleType(90);
   assert.equal(right, "Right angle");
 });
+
+test("Classifies acute angle", () => {
+  const one = getAngleType(1);
+  assert.equal(one, "Acute angle");
+  
+  const thirty = getAngleType(30);
+  assert.equal(thirty, "Acute angle");
+
+  const eightyNine = getAngleType(89);
+  assert.equal(eightyNine, "Acute angle");
+
+  const fortyFive = getAngleType(45);
+  assert.equal(fortyFive, "Acute angle");
+});
+
+test("Classifies obtuse angles", () => {
+  const obtuse = getAngleType(91);
+  assert.equal(obtuse, "Obtuse angle");
+
+  const oneHundredAndSeventyNine = getAngleType(179);
+  assert.equal(oneHundredAndSeventyNine, "Obtuse angle");
+
+  const oneHundredAndTen = getAngleType(110);
+  assert.equal(oneHundredAndTen, "Obtuse angle");
+});
+
+test("Classifies straight angle", () => {
+  const straightAngle = getAngleType(180);
+  assert.equal(straightAngle, "Straight angle");
+});
+
+test("Classifies reflex angles", () => {
+  const reflexAngle = getAngleType(181);
+  assert.equal(reflexAngle, "Reflex angle");
+  const threeHundredAndFiftyNine = getAngleType(359);
+  assert.equal(threeHundredAndFiftyNine, "Reflex angle");
+  const twoHundredAndFifty = getAngleType(250);
+  assert.equal(twoHundredAndFifty, "Reflex angle");
+});
+
+test("Classifies invalid angles", () => {
+  const invalidAngle = getAngleType(-1);
+  assert.equal(invalidAngle, "Invalid angle");
+
+  const zero = getAngleType(0);
+  assert.equal(zero, "Invalid angle");
+
+  const fiveHundred = getAngleType(500);
+  assert.equal(fiveHundred, "Invalid angle");
+
+  const threeHundredAndSixty = getAngleType(360);
+  assert.equal(threeHundredAndSixty, "Invalid angle");
+});
diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
index a29084605..63b55e2d9 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
@@ -10,3 +10,19 @@ test("Basic proper fraction", () => {
   // Example: 1/2 is a proper fraction
   assert.equal(isProperFraction(1, 2), true);
 });
+
+test("Proper fraction numerator is 0", () => {
+  assert.equal(isProperFraction(0, 1), true);
+});
+
+test("Improper fraction denominator is 0", () => {
+  assert.equal(isProperFraction(1, 0), false);
+});
+
+test("Improper fraction numerator is larger than denominator", () => {
+  assert.equal(isProperFraction(6, 4), false);
+});
+
+test("Improper fraction numerator and denominator are the same value", () => {
+  assert.equal(isProperFraction(3, 3), false);
+});
diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
index f5092d9b1..1e589e05c 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
@@ -10,7 +10,74 @@ test("Valid single-digit card", () => {
 });
 
 test("Arbitrary non-card string", () => {
-  assert.throws(() => getCardValue("invalid"), /Expected a number followed by a suit, but got "invalid"/, "Expected clear error");
+  assert.throws(
+    () => getCardValue("invalid"),
+    /Expected a valid number followed by a suit, but got "invalid"/,
+    "Expected clear error"
+  );
 });
 
 // TODO: What other invalid card cases can you think of?
+test("Invalid card rank with no suit", () => {
+  assert.throws(
+    () => getCardValue("15"),
+    /Expected a valid number followed by a suit, but got "15"/,
+    "Expected clear error"
+  );
+});
+
+test("An empty string", () => {
+  assert.throws(
+    () => getCardValue(""),
+    /Expected a valid number followed by a suit, but got ""/,
+    "Expected clear error"
+  );
+});
+
+test("A valid card rank but invalid suit", () => {
+  assert.throws(
+    () => getCardValue("8Z"),
+    /Expected a valid number followed by a suit, but got "8Z"/,
+    "Expected clear error"
+  );
+});
+
+test("A valid suit but invalid card rank", () => {
+  assert.throws(
+    () => getCardValue("26♣"),
+    /Expected a valid number followed by a suit, but got "26♣"/,
+    "Expected clear error"
+  );
+});
+
+test("Rank and suit with an extra letter", () => {
+  assert.throws(
+    () => getCardValue("5♣l"),
+    /Expected a valid number followed by a suit, but got "5♣l"/,
+    "Expected clear error"
+  );
+});
+
+test("Two suits", () => {
+  assert.throws(
+    () => getCardValue("♣♠"),
+    /Expected a valid number followed by a suit, but got "♣♠"/,
+    "Expected clear error"
+  );
+});
+
+test("A negative rank but valid suit", () => {
+  assert.throws(
+    () => getCardValue("-4♣"),
+    /Expected a valid number followed by a suit, but got "-4♣"/,
+    "Expected clear error"
+  );
+});
+
+test("Invalid rank 0 but valid suit", () => {
+  assert.throws(
+    () => getCardValue("0♥"),
+    /Expected a valid number followed by a suit, but got "0♥"/,
+    "Expected clear error"
+  );
+});
diff --git a/implement-and-rewrite-tests/implement/1-get-angle-type.js b/implement-and-rewrite-tests/implement/1-get-angle-type.js
index 8a6fba050..97a24f7c1 100644
--- a/implement-and-rewrite-tests/implement/1-get-angle-type.js
+++ b/implement-and-rewrite-tests/implement/1-get-angle-type.js
@@ -17,5 +17,15 @@
 // execute the code to ensure all tests pass.
 
 export function getAngleType(angle) {
-  // TODO: Implement this function
+  if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  } else if (angle === 90) {
+    return "Right angle";
+  } else if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  } else if (angle === 180) {
+    return "Straight angle";
+  } else if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  } else return "Invalid angle";
 }
diff --git a/implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index f983800f0..f144b542e 100644
--- a/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -14,5 +14,9 @@
 // execute the code to ensure all tests pass.
 
 export function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+  if(numerator < denominator){
+    return true;
+  } else{
+    return false;
+  }
 }
diff --git a/implement-and-rewrite-tests/implement/3-get-card-value.js b/implement-and-rewrite-tests/implement/3-get-card-value.js
index 9614ab1ee..8e52070a8 100644
--- a/implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -24,5 +24,33 @@
 // execute the code to ensure all tests pass.
 
 export function getCardValue(card) {
-  // TODO: Implement this function
+  const cardValue = card.slice(0, -1); // eg "10"
+  const cardSuit = card.slice(-1); // eg "♠"
+  const validValue = [
+    "A",
+    "2",
+    "3",
+    "4",
+    "5",
+    "6",
+    "7",
+    "8",
+    "9",
+    "10",
+    "J",
+    "Q",
+    "K",
+  ];
+  const validSuit = ["♠", "♥", "♦", "♣"];
+  if (!validValue.includes(cardValue) || !validSuit.includes(cardSuit)) {
+    throw new Error(
+      `Expected a valid number followed by a suit, but got "${card}"`
+    );
+  } else if (cardValue === "A") {
+    return 11;
+  } else if (cardValue === "J" || cardValue === "Q" || cardValue === "K") {
+    return 10;
+  } else if (cardValue >= 2 && cardValue <= 10) {
+    return Number(cardValue);
+  }
 }
diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index e0ba786ab..4003b0cf4 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -1,3 +1,4 @@
+import { get } from "node:http";
 import { getAngleType } from "../implement/1-get-angle-type.js";
 
 // TODO: Write tests in Jest syntax to cover all cases/outcomes,
@@ -12,7 +13,30 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when(angle === 90)`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
+
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (angle > 90 && angle < 180)`, () => {
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+  expect(getAngleType(110)).toEqual("Obtuse angle");
+});
 // Case 4: Straight angle
+test(`should return "Straight angle" when (angle === 180)`, () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (angle > 180 && < 360)`, () => {
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+  expect(getAngleType(250)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+test(`should return "Invalid angle" for invalid angles`, () => {
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(500)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+});
diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
index 5d49e2d8b..779e07186 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
@@ -6,3 +6,18 @@ import { isProperFraction } from "../implement/2-is-proper-fraction.js";
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+test(`should return false when numerator is larger than denominator`, () => {
+  expect(isProperFraction(6, 4)).toEqual(false);
+});
+
+test(`should return false when numerator and denominator are the same value`, () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});
+test(`should return true when is a proper fraction`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+
+test(`should return true when numerator is 0`, () => {
+  expect(isProperFraction(0, 1)).toEqual(true);
+});
diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index a6de5a82a..c907b227f 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -7,6 +7,113 @@ test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+describe("Returns numeric value when given cards ranked (2-10)", () => {
+  test("Returns 2 when given a card with rank 2", () => {
+    expect(getCardValue("2♥")).toEqual(2);
+  });
+
+  test("Returns 3 when given a card with rank 3", () => {
+    expect(getCardValue("3♣")).toEqual(3);
+  });
+
+  test("Returns 4 when given a card with rank 4", () => {
+    expect(getCardValue("4♦")).toEqual(4);
+  });
+
+  test("Returns 5 when given a card with rank 5", () => {
+    expect(getCardValue("5♣")).toEqual(5);
+  });
+
+  test("Returns 6 when given a card with rank 6", () => {
+    expect(getCardValue("6♦")).toEqual(6);
+  });
+
+  test("Returns 7 when given a card with rank 7", () => {
+    expect(getCardValue("7♠")).toEqual(7);
+  });
+
+  test("Returns 8 when given a card with rank eight", () => {
+    expect(getCardValue("8♥")).toEqual(8);
+  });
+
+  test("Returns 9 when given a nine card", () => {
+    expect(getCardValue("9♠")).toEqual(9);
+  });
+
+  test("Returns 10 when given a ten card", () => {
+    expect(getCardValue("10♣")).toEqual(10);
+  });
+});
+
+describe("Returns 10 when given (Q,J or K) cards", () => {
+  test("Returns 10 when given a Q card", () => {
+    expect(getCardValue("Q♥")).toEqual(10);
+  });
+
+  test("Returns 10 when given a J card", () => {
+    expect(getCardValue("J♣")).toEqual(10);
+  });
+
+  test("Returns 10 when given a K card", () => {
+    expect(getCardValue("K♠")).toEqual(10);
+  });
+});
+
+describe("Invalid Cards", () => {
+  test("Throws an error when given an empty string", () => {
+    expect(() => getCardValue("")).toThrow(
+      /Expected a valid number followed by a suit, but got ""/
+    );
+  });
+  test("Arbitrary non-card string", () => {
+    expect(() => getCardValue("invalid")).toThrow(
+      /Expected a valid number followed by a suit, but got "invalid"/
+    );
+  });
+
+  test("Invalid card rank with no suit", () => {
+    expect(() => getCardValue("15")).toThrow(
+      /Expected a valid number followed by a suit, but got "15"/
+    );
+  });
+
+  test("A valid card rank but invalid suit", () => {
+    expect(() => getCardValue("8Z")).toThrow(
+      /Expected a valid number followed by a suit, but got "8Z"/
+    );
+  });
+
+  test("A valid suit but invalid card rank", () => {
+    expect(() => getCardValue("26♣")).toThrow(
+      /Expected a valid number followed by a suit, but got "26♣"/
+    );
+  });
+
+  test("Rank and suit with an extra letter", () => {
+    expect(() => getCardValue("5♣l")).toThrow(
+      /Expected a valid number followed by a suit, but got "5♣l"/
+    );
+  });
+
+  test("Two suits", () => {
+    expect(() => getCardValue("♣♠")).toThrow(
+      /Expected a valid number followed by a suit, but got "♣♠"/
+    );
+  });
+
+  test("A negative rank but valid suit", () => {
+    expect(() => getCardValue("-4♣")).toThrow(
+      /Expected a valid number followed by a suit, but got "-4♣"/
+    );
+  });
+
+  test("Invalid rank 0 but valid suit", () => {
+    expect(() => getCardValue("0♥")).toThrow(
+      /Expected a valid number followed by a suit, but got "0♥"/
+    );
+  });
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
@@ -15,4 +122,3 @@ test(`Should return 11 when given an ace card`, () => {
 // To learn how to test whether a function throws an error as expected in Jest,
 // please refer to the Jest documentation:
 // https://jestjs.io/docs/expect#tothrowerror
-