Grade 1 · Set C · Side 1 of 2
Tens take tens
C
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: Take tens away from tens. What is left is tens too.
170 − 30 =
290 − 80 =
380 − 40 =
480 − 10 =
590 − 50 =
660 − 40 =
7 = 60 − 20
8 = 70 − 30
980 − 60 =
10 = 80 − 20
11 = 90 − 30
1270 − 60 =
1360 − 10 =
1490 − 10 =
15 = 60 − 40
1680 − 30 =
17 = 70 − 10
1890 − 60 =
1960 − 20 =
20 = 70 − 60
2180 − 20 =
2270 − 40 =
2360 − 50 =
24 = 70 − 40
Grade 1 · Set C · Side 2 of 2
Tens take tens
C
Start Finish
Goal: 10 min for both sides
Score/ 48
2590 − 40 =
2660 − 30 =
27 = 80 − 40
28 = 80 − 70
2970 − 50 =
3090 − 20 =
31 = 90 − 60
3280 − 70 =
33 = 80 − 50
3470 − 20 =
3570 − 10 =
36 = 70 − 50
3790 − 70 =
38 = 90 − 40
3980 − 50 =
40 = 90 − 20
41 = 80 − 30
4290 − 30 =
43 = 60 − 10
44 = 60 − 50
45 = 90 − 80
46 = 60 − 30
47 = 90 − 10
48 = 90 − 70