Operations Quiz - CBSE Class 7 Mathematics
Free practice quiz: Operations (CBSE Class 7 Mathematics). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
This CBSE Class 7 Mathematics practice quiz has 19 multiple-choice questions on Operations, and 19 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.
Start quiz: 19 questions, freeLearn the key ideas Beta
Adding Integers with Signs
- Same signs: add the sizes and keep the common sign.
- Different signs: subtract the smaller size from the larger, then use the sign of the larger size.
- An integer added to its opposite always gives zero.
Common mistake: Adding the sizes when the signs are different, instead of subtracting the smaller size from the larger one.
Subtraction Means Adding the Opposite
- To subtract an integer, add its additive inverse (its opposite).
- Subtracting a negative number is the same as adding the positive number.
Common mistake: Treating a - (-b) as a - b. The two minus signs together become a plus sign.
Sign Rules for Multiplication
- Multiply the sizes first, then decide the sign.
- Same signs give a positive product. Different signs give a negative product.
- Any integer multiplied by zero gives zero.
Common mistake: Thinking a negative times a negative is negative. Two negatives multiplied always give a positive product.
Sign Rules for Division
- Divide the sizes, then use the same sign rules as multiplication.
- Same signs give a positive quotient. Different signs give a negative quotient.
Common mistake: Forgetting the negative sign when only one of the two numbers is negative, and giving a positive answer.
Exam tips
- Rewrite every subtraction as addition of the opposite before you calculate.
- Decide the sign first, then work out the size of the answer.
- Check that your answer's sign makes sense for the operation used.
Beta: made with AI and checked by a second AI. A teacher has not reviewed it yet.
Sample questions
What is the result of adding 3 and -8?
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Answer: B. -5
Adding a positive number (3) and a negative number (-8) results in subtraction: 3 - 8 = -5.
What is the result of dividing -15 by 3?
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Answer: A. -5
Dividing a negative number by a positive number results in a negative number: -15 / 3 = -5.
Subtract: (-6) - (-3).
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Answer: A. -3
Subtracting a negative is equivalent to adding its positive: (-6) - (-3) = -6 + 3 = -3.
Determine: (-5) * 6.
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Answer: B. -30
Multiplying a negative number with a positive number results in a negative product: (-5) * 6 = -30.
Find the result of 21 / (-3).
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Answer: A. -7
Dividing a positive number by a negative results in a negative quotient: 21 / (-3) = -7.
More questions in this quiz
Answers and explanations are in the full quiz.
- Calculate the result of subtracting -4 from 7.
- What is -3 multiplied by 4?
- Simplify: 6 + (-6).
- Calculate: (-8) * 0.
- What is the result of (-9) / (-1)?
- Multiply: 5 * (-7).
- Evaluate: -3 - 5.
- What is -9 - (-9)?
- What is the result of -20 / 5?
- Simplify: 4 - (-12).
- Calculate the result of (-18) + (-7).
- Calculate: (-8) - 14.
- Simplify: 14 + (-18).
- What is the result of (-25) * (-4)?