Grade 1 · Set B · Side 1 of 2
Tens take tens
B
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Take tens away from tens. What is left is tens too.
1 = 40 − 10
240 − 20 =
350 − 40 =
4 = 30 − 10
560 − 30 =
620 − 10 =
730 − 10 =
8 = 50 − 10
9 = 50 − 20
1090 − 20 =
11 = 50 − 40
1240 − 10 =
1390 − 80 =
1450 − 20 =
15 = 90 − 30
1650 − 10 =
1750 − 30 =
1870 − 50 =
19 = 40 − 20
20 = 80 − 70
21 = 40 − 30
2240 − 30 =
2370 − 10 =
2430 − 20 =
Grade 1 · Set B · Side 2 of 2
Tens take tens
B
Start Finish
Goal: 10 min for both sides
Score/ 48
25 = 80 − 60
2690 − 70 =
27 = 20 − 10
2870 − 20 =
29 = 30 − 20
30 = 90 − 80
3160 − 50 =
32 = 50 − 30
3380 − 70 =
3480 − 50 =
3590 − 40 =
3680 − 60 =
3740 − 30 =
3870 − 40 =
3990 − 30 =
4070 − 30 =
41 = 90 − 70
42 = 50 − 10
4380 − 10 =
4470 − 60 =
45 = 80 − 30
4690 − 10 =
4790 − 60 =
48 = 90 − 40
Answer key · Grade 1 · Set B
Tens take tens
130
220
310
420
530
610
720
840
930
1070
1110
1230
1310
1430
1560
1640
1720
1820
1920
2010
2110
2210
2360
2410
2520
2620
2710
2850
2910
3010
3110
3220
3310
3430
3550
3620
3710
3830
3960
4040
4120
4240
4370
4410
4550
4680
4730
4850
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.