Page 102 - ICSE Math 1

Tens Ones Tens Ones Tens Ones Tens Ones
(e) 4 2 (f) 8 3 (g) 1 5 (h) 2 2

+ 5 + 1 + 3 + 7

2. Add the given numbers and match the answers with their number

names. One has been done for you.
Tens Ones Tens Ones
(a) 1 5 (i) Nineteen (b) 2 4

+ 2 + 3

1 7 (ii) Seventeen

Tens Ones Tens Ones

(c) 7 5 (iii) Twenty-seven (d) 1 1

+ 1 + 8

(iv) Fi y-nine

Tens Ones Tens Ones
(e) 4 0 (v) Seventy-six (f) 5 2

+ 6 + 7

(vi) Forty-six

Addition of Two 2-Digit Numbers

Look at the given example.

Tens Ones
Step 1: Add the ones and write the sum under ones.
1 5
5 + 3 = 8
+ 2 3
Step 2: Add the tens and write the sum under tens.
3 8
1 + 2 = 3

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