Grade 1 · Set B · Side 1 of 2
Ten more, ten less
B
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Ten more or ten less moves the tens digit. The ones stay.
1ten more than 18 is
2ten more than 66 is
3ten more than 54 is
4ten more than 36 is
5ten less than 70 is
6ten more than 45 is
7ten more than 73 is
8ten more than 42 is
9ten more than 85 is
10ten less than 76 is
11ten more than 78 is
12ten more than 70 is
13ten less than 87 is
14ten more than 79 is
15ten less than 21 is
16ten more than 14 is
17ten more than 75 is
18ten less than 46 is
19ten more than 84 is
20ten less than 38 is
21ten more than 67 is
22ten more than 21 is
23ten less than 37 is
24ten more than 58 is
Grade 1 · Set B · Side 2 of 2
Ten more, ten less
B
Start Finish
Goal: 10 min for both sides
Score/ 48
25ten less than 92 is
26ten less than 80 is
27ten more than 86 is
28ten less than 98 is
29ten more than 69 is
30ten less than 20 is
31ten less than 53 is
32ten more than 15 is
33ten less than 95 is
34ten less than 58 is
35ten less than 49 is
36ten less than 90 is
37ten more than 71 is
38ten less than 66 is
39ten less than 63 is
40ten less than 65 is
41ten less than 32 is
42ten more than 25 is
43ten less than 89 is
44ten less than 24 is
45ten less than 73 is
46ten less than 57 is
47ten less than 23 is
48ten less than 61 is
Answer key · Grade 1 · Set B
Ten more, ten less
128
276
364
446
560
655
783
852
995
1066
1188
1280
1377
1489
1511
1624
1785
1836
1994
2028
2177
2231
2327
2468
2582
2670
2796
2888
2979
3010
3143
3225
3385
3448
3539
3680
3781
3856
3953
4055
4122
4235
4379
4414
4563
4647
4713
4851
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.