Arithmetic Expressions
CBSE · Class 7 · Mathematics
Most important questions from Arithmetic Expressions for CBSE Class 7 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
Which of the following expressions have the same value as 8 + 12 - 5?
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12 + 8 - 5, 8 + (12 - 5), 20 - 5, 15
8 + 12 - 5 = 15. Using commutative property: 12 + 8 - 5 = 15. Using associative property: 8 + (12 - 5) = 8 + 7 = 15. Simplifying: 20 - 5 = 15. The value 15 is also correct.
Calculate: (25 - 15) × 3 + 8
The expression 45 ÷ 9 + 6 × 2 equals 17.
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True
Following order of operations: 45 ÷ 9 = 5, then 6 × 2 = 12, finally 5 + 12 = 17. The statement is true.
Which operations give the same result as 7 × 4 + 3 × 2?
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7 × 4 + 3 × 2, 3 × 2 + 7 × 4, (7 × 4) + (3 × 2)
First evaluate each product: 7 × 4 = 28 and 3 × 2 = 6. Adding the terms gives 28 + 6 = 34, so any expression that adds these same two terms has the same value. Changing the order of the two terms does not change the sum because addition is commutative.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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