Use the ten-frame and a crayon to show how to decompose the numbers into tens and ones

1 Suppose these numbers are boxes and the dots 2 represent the crayon color to show that they are filled. 3 If we have 1 ten frame we will use it one ten and if we have 4 5 ones then they will not be a ten. 2 tens would make a 5 twenty similarly 3 tens would make a thirty. 6 7 8 9 10

1 If we add a single 10 and 5 ones the answer would be 15 2 Other examples would adding two tens and 7 ones which 3 would make 27. 4 5

Another way to decompose the number would be

43 taking the 4 of the left with tens like 40 (4*10) and 3 of the right as three separate ones (3*1 = 3). Adding 10s four times with three one times would make 43