Addition
1+9=
10
2
How many Tens in 76?
7
15+4=
19
12-10=
2
How many Ones in 89?
9
7+3+8=
18
20-15=
5
What is the value of 6 in 62?
60
10+3+5=
18
20-10=
10
Using Base Ten, Build 34
3 Rods, 4 Units
50+7=
57
40-20=
20
Using Base Ten, Build 86
8 Rods, 6 Units