A) Fill in the missing numbers on these number tracks.
1) Count by ones: 37, 38, 39, 40, 41, 42, 43, 44, 45
2) Count by tens: 14, 24, 34, 44, 54, 64, 74, 84, 94
3) Count back by ones: 62, 61, 60, 59, 58, 57, 56, 55, 54
4) Count back by tens: 99, 89, 79, 69, 59, 49, 39, 29, 19
5) Count by ones: 94, 95, 96, 97, 98, 99, 100, 101, 102
6) Count back by tens: 83, 73, 63, 53, 43, 33, 23, 13, 3
B) Work out the answers to these addition problems.
1) 23 + 1 = 24
2) 14 + 10 = 24
3) 67 - 1 = 66
4) 26 + 1 = 27
5) 33 - 10 = 23
6) 19 + 1 = 20
7) 77 + 10 = 87
8) 62 - 10 = 52
9) 39 - 1 = 38
10) 18 + 10 = 28
11) 49 - 10 = 39
12) 38 - 1 = 37
13) 99 + 1 = 100
14) 53 + 10 = 63
Parent Tip: Review the logic above to help your child master the concept of printable addition and subtraction problems.
