Page 61 - Math Genius C2

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\ 26-Sep-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________

Step 2. Subtract the tens. t O maths fun Art Integration

4 tens are left. 4 12 Subtract the ones first, Which vehicle is used to travel into space? _______________
then subtract the tens.
So, 4 – 3 = 1 ten 5 2 To find the answer, solve the problems and colour each segment according to the

Write 1 in the tens column. – 3 6 given colour code.
1 6
Thus, 52 – 36 = 16. 90 – 1 =
Think Tank Critical Thinking 89 – 15 =
example 2: Find: (a) 82 – 48 (b) 71 – 59 74 – 6 = 55 – 48 =
1. What is 3 tens less
Solution: (a) t O (b) t O than 70 ones? 30 – 15 = 70

7 12 6 11 2. What is the number just 70 – 4 = 69 – 2 = – 40
after 95 – 52?
8 2 7 1 68 – 1 =
– 4 8 – 5 9 Math Insight 81 – 8 = 26 – 16 =

3 4 1 2 In subtraction, we always
write the greater number 64 – 54 = 73 – 6 =
Thus, 82 – 48 = 34. Thus, 71 – 59 = 12. on top and the smaller 96 – 25 =
number below it. 72 – 36 =
Practice Time 3C 74 – 68 = 81 – 5 =

1. Find the difference. 76 – 6 = 76 – 10 =

(a) t O (b) t O (c) t O (d) t O 91 – 65 = 99 – 65 = 85 – 12 =
85 – 18 =

4 5 3 0 2 7 4 0 82 – 8 =
– 8 – 4 – 9 – 5 83 – 9 = 90 – 17 = 91 – 9 =
17 – 7 = 77 – 10 =

2. Subtract the following. 93 – 30 = 71 – 14 =

(a) t O (b) t O (c) t O (d) t O 82 – 24 = 65 – 5 =

Colour Code
6 0 6 1 4 0 9 0 Answer Less than 10 10 Between 10 and 30 From 30 to 50 Between 50 and 65 Above 65
– 2 5 – 4 4 – 1 8 – 2 1 Colour Blue Red Yellow Gray Brown Black

(e) t O (f) t O (g) t O (h) t O Challenge Question Critical Thinking

1. What numerical values of and make the picture statements true?
2 5 5 1 5 2 7 2 + = 22 and – = 5. So, = _______ and = _______

– 1 6 – 1 7 – 2 8 – 2 4 2. I am an odd number. If you subtract me from 19, the result is greater than 16.

Who am I? __________

Mathematics-2 59