Page 7 - PPT2

Step 3- Subtract the ones from

ones and tens from tens.

T O

2 18

3 8

- 1 9

1 9

Now instead of 3 tens and 8 ones, we have 2

tens and 18 ones.

(18 ones- 9 ones= 9 ones, write 9 under the

ones column)

(2 tens -1 ten = 1 ten, write 1 under the tens

column)