Grade 1 · Set E · Side 1 of 2
Adding to a hundred
E
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Tens go with tens, ones go with ones. Ten ones make a new ten.
199 + 1 =
252 + 3 =
33 + 67 =
484 + 5 =
544 + 20 =
655 + 8 =
749 + 30 =
846 + 30 =
95 + 62 =
1020 + 39 =
1144 + 40 =
1214 + 4 =
13 = 60 + 23
1436 + 40 =
1520 + 69 =
1628 + 2 =
1742 + 6 =
18 = 83 + 2
1989 + 10 =
208 + 21 =
216 + 68 =
2259 + 5 =
235 + 79 =
2459 + 9 =
Grade 1 · Set E · Side 2 of 2
Adding to a hundred
E
Start Finish
Goal: 10 min for both sides
Score/ 48
2533 + 5 =
2679 + 5 =
2742 + 3 =
2829 + 2 =
2955 + 2 =
3042 + 40 =
31 = 3 + 55
3265 + 3 =
3313 + 70 =
34 = 66 + 2
3563 + 7 =
361 + 25 =
373 + 13 =
38 = 24 + 7
3920 + 77 =
4040 + 52 =
41 = 20 + 57
4275 + 7 =
43 = 16 + 20
44 = 9 + 49
45 = 49 + 3
4658 + 2 =
4789 + 5 =
4843 + 10 =
Answer key · Grade 1 · Set E
Adding to a hundred
1100
255
370
489
564
663
779
876
967
1059
1184
1218
1383
1476
1589
1630
1748
1885
1999
2029
2174
2264
2384
2468
2538
2684
2745
2831
2957
3082
3158
3268
3383
3468
3570
3626
3716
3831
3997
4092
4177
4282
4336
4458
4552
4660
4794
4853
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.