📘 Quiz

Test your skills & challenge yourself 🚀

Question 1 / 4
1:00
1
What approximate value should replace (x) in the equation: 139.25 + 223.94 / 4.002 = x?
0:00
Solution: Step 1: Approximate values: 139.25 ≈ 140, 223.94 ≈ 224, 4.002 ≈ 4 Step 2: Substitute approximations: x ≈ 140 + 224 / 4 Step 3: Perform division: 224 / 4 = 56 Step 4: Add results: x ≈ 140 + 56 = 196 Step 5: Closest option to 196 is 195
2
Among five given mathematical expressions, identify the one that does not yield the same result as the others: (A) 256/2 + 3 = (B) 65.5*2 = (C) 240/4 + 70 = (D) 11 + 94 + 25 = (E) 7.5 + 23.5 + 89.3 + 10.7
0:00
Solution: Step 1: Evaluate each expression: (A) 256/2 + 3 = 131, (B) 65.5*2 = 131, (C) 240/4 + 70 = 130, (D) 11 + 94 + 25 = 130 (corrected typo: 25 instead of 26), (E) 7.5 + 23.5 + 89.3 + 10.7 = 131. Step 2: Compare results: (A), (B), (D), (E) = 131; (C) = 130. Step 3: Identify the differing expression: (C) 240/4 + 70 = 130.
3
Calculate the result of 945.341 - 1042.792 + 875.435 + 31.025.
0:00
Solution: Step 1: Perform the subtraction first: 945.341 - 1042.792 = -97.451 Step 2: Add 875.435 to the result: -97.451 + 875.435 = 777.984 Step 3: Finally, add 31.025: 777.984 + 31.025 = 809.009
4
Evaluate the expression (74.6 - 38.9 - 5.7) / (26.4 - 18.9).
0:00
Solution: Step 1: Simplify the numerator: 74.6 - 38.9 - 5.7 = 30.0 Step 2: Simplify the denominator: 26.4 - 18.9 = 7.5 Step 3: Divide the results: 30.0 / 7.5 = 4.0
📊 Questions Status
1
2
3
4