G2C3Math

15=

• 1 ten and 4 ones

• 1 ten and 5 ones

• 1 ten and 6 ones

19=

• 1 ten and 7 ones

• 1 ten and 8 ones

• 1 ten and 9 one

23+6=

• 29

• 30

• 39

21+27=

• 46

• 47

• 48

38+24=

• 52

• 60

• 62

36+43+17=

• 86

• 89

• 96

45+5+22=

• 58

• 72

• 68

31+10+6+33=

• 89

• 90

• 94

How many blocks are shown?

• 30

• 37

• 36

What is another way to write 7 tens and 8 ones?

• 78

• 87

• 90