Unit 1 · Class 6 IB MYP · MCQ Test
Number Operations MCQ Test — Class 6 IB MYP
Practice 10 multiple-choice questions with instant answer reveal and explanations.
Number Operations — MCQ Questions
1What is 347 + 258?
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Answer: 605
Hint: Add the ones first (7 + 8 = 15), carry the 1, then add tens and hundreds.
Solution:
Add ones: 7 + 8 = 15, write 5, carry 1.
Add tens: 4 + 5 + 1 = 10, write 0, carry 1.
Add hundreds: 3 + 2 + 1 = 6. — 347 + 258 = 605
2Calculate 803 - 467.
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Answer: 336
Hint: You will need to borrow from the hundreds place since 0 < 6 in the tens column.
Solution:
Borrow from hundreds: 803 becomes 7(10)3.
Borrow from tens: 7(9)(13).
Subtract column by column: — 803 - 467 = 336
3What is 45 x 12?
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Answer: 540
Hint: Break it into 45 x 10 + 45 x 2.
Solution:
Use the distributive property: — 45 x 12 = 45 x 10 + 45 x 2
Calculate each part: — 450 + 90 = 540
4Divide 936 by 8.
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Answer: 117
Hint: How many times does 8 go into 9, then into 13, then into 56?
Solution:
8 into 9 = 1 remainder 1.
Bring down 3: 8 into 13 = 1 remainder 5.
Bring down 6: 8 into 56 = 7. — 936 / 8 = 117
5Evaluate: 8 + 4 x 3
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Answer: 20
Hint: Remember the order of operations: multiply before adding.
Solution:
Multiplication first: — 4 x 3 = 12
Then addition: — 8 + 12 = 20
6Round 4,678 to the nearest hundred.
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Answer: 4,700
Hint: Look at the tens digit. If it is 5 or more, round up.
Solution:
The tens digit is 7 (which is >= 5).
Round up the hundreds: — 4,678 rounds to 4,700
7Estimate 489 + 312 by rounding each number to the nearest hundred.
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Answer: 800
Hint: Round 489 to 500 and 312 to 300.
Solution:
Round each number: — 489 ≈ 500, 312 ≈ 300
Add the rounded values: — 500 + 300 = 800
8What is the value of 15 x 0 + 15?
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Answer: 15
Hint: Any number multiplied by 0 is 0. Then add 15.
Solution:
Multiply first: — 15 x 0 = 0
Then add: — 0 + 15 = 15
9Calculate 1,000 - 384.
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Answer: 616
Hint: Borrow from each column starting from the left.
Solution:
Borrow and subtract column by column.
Result: — 1000 - 384 = 616
10What is 56 x 25?
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Answer: 1,400
Hint: Think of 25 as 100 / 4. So 56 x 25 = 56 x 100 / 4.
Solution:
Use the strategy: — 56 x 25 = 56 x (100 / 4)
Calculate: — 5600 / 4 = 1400
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Tips for Number Operations MCQs
- 1Read each question carefully and identify what is being asked before looking at the options.
- 2Try to solve the problem mentally or on paper first, then match your answer with the options.
- 3Use elimination — rule out clearly wrong options to improve your chances even when unsure.
- 4Check units, signs, and edge cases — these are common traps in Number Operations MCQs.
- 5Review your mistakes after completing the test to build lasting understanding.
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