Page 24 - Math Skill - 2

22 Maths

Add the following.

T O T O T O T O

2 5 4 5 1 4 3 7
+ 2 2 + 3 2 + 1 3 + 1 1

T O T O T O T O
3 4 3 7 4 5 3 5

+ 1 5 + 2 1 + 3 2 + 1 4

Regrouping from Ones to Tens

We can regroup 12 ones as 1 ten and 2 ones.

10 ones = 1 ten

12 ones 1 ten 2 ones

12 ones = 1 ten + 2 ones

Fill in the boxes. One has been done for you.

(a) 6 tens + 10 ones = 7 tens + 0 ones

(b) 3 tens + 10 ones = tens + ones

(c) 5 tens + 16 ones = tens + ones

(d) 6 tens + 21 ones = tens + ones

(e) 2 tens + 10 ones = tens + ones