Addition in the 10s
10 + 30 =
40
5 + 4 =
9
6 + 6 =
12
How many ones are in 18?
8
____ + 3 = 10
7
50 + 40 =
90
12 + 07 =
19
43 + 9 =
52
How many tens are in 98?
9 tens
7 + ___ = 18
11
120 + 50 =
170
51 + 08
59
432 + 19 =
451
How many tens are in 437?
30
___ + 43 = 94
51
453 + 30 =
483
432 + 8
440
342 + 173 =
515
How many hundreds are in 9,723?
700
453 + ____ = 968
515
925 + 70 =
995
1,473 + 4
1,477
1,275 + 1,416 =
2,691
How many thousands are in 62,378?
2,000
_____ = 1,234 + 5,321
6,555