Final Answer:
A) Missing numbers on number tracks:
1) 39, 40, 42, 43, 45
2) 34 → 44 (already given), so next: 54, 64, 74 (given), then 84
Actually, track is: 14, 24, 34, 44, __, __, 74, __
So: +10 each time → 54, 64, 84
3) Count back by ones: 62, 61, __, __, 58, __, __, 54
So: 60, 59, 57, 56
4) Count back by tens: 99, 89, 79, __, __, 49, __, __
−10 each: 69, 59, 39, 29
5) Count by ones: 94, 95, __, 97, __, __, 101
So: 96, 98, 99, 100
6) Count back by tens: 83, 73, 63, __, __, 33, __, __
−10 each: 53, 43, 23, 13
B) Addition/subtraction 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 addition and subtraction quiz worksheet.
