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E:\Working\Orange_Education\Math_Genius_1\Open_Files\Chap_4
\ 03-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

7. Subtract the following using the given number lines.

(a) 11 – 9

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

(b) 18 – 7

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
8. Mansi baked 15 pizzas. She gave 5 to her friends. How many pizzas does she

have for herself?

9. Seema had 14 hot dogs. She ate 6. How many does she have now?
10. Shreya had 12 lemons. She used 6 lemons to prepare lemonade for a party. How

many lemons are left with her?

Mental Maths Critical Thinking
1. How much is 3 less than 7? ________________

2. What number comes just before 18? ________________

3. What is the sign of subtraction? ________________

4. How much more is 10 than 4? ________________

5. What number do you add to 6 to get 7? ________________

Challenge Question Critical Thinking Logical Thinking
1. Arti had some bracelets. After giving 8 bracelets to her friends,
she was left with 7 bracelets. How many bracelets did Arti have in the beginning?

2. You begin with 9 candies. You and your friend each eat 4 candies, and then you
find 3 more hiding in your bag. How many candies do you have now? Represent
this situation with a number sentence and find the answer.

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