Page 59 - Math Genius C2

E:\Working\Orange_Education\Math_Genius_2\Open_Files\Chap_03
\ 26-Sep-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________

Step 1. Since there are not enough ones, Step 2. Then subtract the ones.

borrow 1 ten from 3 tens and regroup 10 14 – 8 = 6 ones

ones with 4 ones. Write 6 in the ones column.

t O t O

2 14 2 14
3 4 3 4
– 8 – 8

6

Step 3. Subtract the tens. david: Okay, I understand. Now I will try

2 – 0 = 2 tens to subtract 6 from 20.
First regroup 1 ten = 10 ones.
Write 2 in the tens column. Then, subtract 10 – 6 = 4 ones

t O and 1 – 0 = 1 ten

2 14 t O
3 4 1 10
– 8 2 0
2 6 – 6

1 4

Hence, 34 – 8 = 26. Hence, 20 – 6 = 14.

Subtraction of two 2-digit Numbers

Let us understand this with some examples. Challenge Question
example 1: Subtract 36 from 52. I am a 2-digit number. My tens

Solution: Write the numbers in columns ac- digit is double my ones digit.
If you flip my digits, the new
cording to the place value of digits and sub- number is 27 less than me.
tract step-wise. What number am I?

Step 1. Subtract the ones. t O
Since 2 < 6, borrow 1 ten from 5 tens. 4 12

1 ten + 2 ones = 10 ones + 2 ones = 12 ones 5 2

Now, 12 – 6 = 6 ones – 3 6

Write 6 in the ones column. 6

Mathematics-2 57