A) Fill in the missing numbers on these number tracks.
1) Count by ones: 172, 173, 174, 175, 176, 177, 178, 179
2) Count by tens: 43, 53, 63, 73, 83, 93, 103, 113
3) Count by hundreds: 27, 127, 227, 327, 427, 527, 627, 727
4) Count by ones: 328, 329, 330, 331, 332, 333, 334, 335
5) Count by tens: 156, 166, 176, 186, 196, 206, 216, 226
6) Count by hundreds: 271, 371, 471, 571, 671, 771, 871, 971
B) Work out the answers to these addition problems.
1) 267 + 1 = 268
2) 713 + 1 = 714
3) 26 + 10 = 36
4) 141 + 10 = 151
5) 236 + 10 = 246
6) 320 + 100 = 420
7) 524 + 100 = 624
8) 829 + 1 = 830
9) 604 + 1 = 605
10) 138 + 10 = 148
11) 762 + 10 = 772
12) 301 + 10 = 311
13) 428 + 100 = 528
14) 637 + 100 = 737
Parent Tip: Review the logic above to help your child master the concept of addition worksheet hundreds.
