Grade 2 · Set B · Side 1 of 2
Two digits, with a ten to break
B
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Too few ones? Break a ten into ten ones first.
178 − 9 =
258 − 9 =
397 − 9 =
454 − 5 =
578 − 39 =
635 − 8 =
766 − 7 =
8 = 46 − 9
988 − 9 =
1066 − 39 =
11 = 92 − 9
1241 − 9 =
1394 − 42 =
1482 − 8 =
1548 − 19 =
1687 − 9 =
1745 − 7 =
1888 − 37 =
1925 − 9 =
2062 − 47 =
2187 − 8 =
2261 − 2 =
2343 − 16 =
24 = 25 − 9
Grade 2 · Set B · Side 2 of 2
Two digits, with a ten to break
B
Start Finish
Goal: 10 min for both sides
Score/ 48
2551 − 35 =
26 = 78 − 35
2776 − 9 =
2877 − 38 =
2955 − 8 =
3072 − 24 =
3154 − 15 =
3271 − 8 =
3342 − 24 =
3474 − 48 =
3578 − 49 =
3682 − 64 =
37 = 93 − 5
3874 − 16 =
39 = 62 − 37
4074 − 39 =
4165 − 48 =
4246 − 7 =
4397 − 31 =
44 = 91 − 36
4583 − 22 =
4691 − 45 =
4747 − 19 =
4897 − 38 =
Answer key · Grade 2 · Set B
Two digits, with a ten to break
169
249
388
449
539
627
759
837
979
1027
1183
1232
1352
1474
1529
1678
1738
1851
1916
2015
2179
2259
2327
2416
2516
2643
2767
2839
2947
3048
3139
3263
3318
3426
3529
3618
3788
3858
3925
4035
4117
4239
4366
4455
4561
4646
4728
4859
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.