45 + 5=
50
What symbol is it?
Minus
What number is it?
20
What number is it?
52
10-7 =
3
What symbol is it?
Equals
What number is it?
83
72 + 2 =
74
What number is it?
145
18+5=
23
What number is it?
100
782 - How many hundreds?
7 hundreds
12 hundreds
56 - How many ones?
5 ones
6 ones
What symbol is it?
Plus
839 - How many tens?
9 Tens
3 Tens
30 + 8=
38
What number is it?
16