Grade 1 · Set A · Side 1 of 2
Tens take tens
A
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Take tens away from tens. What is left is tens too.
140 − 30 =
2 = 50 − 20
3 = 30 − 20
450 − 20 =
550 − 30 =
650 − 40 =
720 − 10 =
8 = 40 − 30
9 = 50 − 40
1040 − 10 =
1150 − 10 =
1240 − 20 =
13 = 50 − 10
14 = 40 − 10
15 = 30 − 10
1630 − 20 =
1730 − 10 =
18 = 20 − 10
19 = 40 − 20
20 = 50 − 30
2140 − 10 =
2230 − 20 =
2340 − 20 =
2440 − 10 =
Grade 1 · Set A · Side 2 of 2
Tens take tens
A
Start Finish
Goal: 10 min for both sides
Score/ 48
25 = 50 − 10
26 = 40 − 10
2730 − 20 =
2830 − 20 =
2950 − 30 =
3040 − 10 =
31 = 40 − 10
3240 − 20 =
3320 − 10 =
3440 − 20 =
3550 − 10 =
36 = 20 − 10
3740 − 30 =
3830 − 10 =
3950 − 30 =
4030 − 20 =
4140 − 20 =
4240 − 20 =
4350 − 20 =
4440 − 10 =
4530 − 10 =
46 = 50 − 40
47 = 40 − 10
48 = 50 − 40
Answer key · Grade 1 · Set A
Tens take tens
110
230
310
430
520
610
710
810
910
1030
1140
1220
1340
1430
1520
1610
1720
1810
1920
2020
2130
2210
2320
2430
2540
2630
2710
2810
2920
3030
3130
3220
3310
3420
3540
3610
3710
3820
3920
4010
4120
4220
4330
4430
4520
4610
4730
4810
Mark each answer, count the right ones and write the score on the sheet. Beat your own time next time.