Page 87 - New Medley 1 Semester 2

Addition By Grouping Tens and Ones

Let us add 23 and 35.

We know that 23 is We know that 35 is

2 tens and 3 ones 3 tens and 5 ones

So, 23 + 35 = 2 tens + 3 ones + 3 tens + 5 ones

= 2 + 3 tens + 3 + 5 ones

= 5 tens + 8 ones = 58

A. Add the following by Grouping tens and ones.

1. 30 + 49 = tens + ones + tens + ones

= + tens + + ones

= tens + ones =

2. 32 + 66 = tens + ones + tens + ones

= + tens + + ones

= tens + ones =

3. 37 + 20 = tens + ones + tens + ones

= + tens + + ones

= tens + ones =

4. 22 + 45 = tens + ones + tens + ones

= + tens + + ones

= tens + ones =
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