Grade 1 · Set E · Side 1 of 2
The missing part
E
Start Finish
Goal: 10 min for both sides
Score/ 48
Remember: A whole is two parts. Find the part that is missing.
112 = + 9
29 = 11 −
315 − = 9
45 = 12 −
517 − = 9
618 = + 9
716 − = 9
8 − 7 = 4
917 − = 8
10 − 7 = 9
11 − 4 = 8
1211 = + 8
13 + 8 = 11
14 + 9 = 13
15 − 3 = 9
16 + 9 = 16
176 = 15 −
1811 − = 7
193 = − 9
208 = − 7
21 + 8 = 14
22 − 3 = 8
23 + 7 = 15
247 = 16 −
Grade 1 · Set E · Side 2 of 2
The missing part
E
Start Finish
Goal: 10 min for both sides
Score/ 48
25 − 5 = 9
268 = − 3
276 = 14 −
28 + 5 = 14
29 + 8 = 13
3012 = + 3
3114 − = 9
32 + 4 = 12
339 = − 6
34 + 6 = 11
356 = 13 −
3614 = + 5
3716 = + 7
38 − 9 = 8
39 − 7 = 6
407 = 14 −
41 − 9 = 7
4214 = + 6
43 + 7 = 14
44 + 8 = 16
4515 = + 6
4613 = + 9
4713 − = 7
48 − 8 = 6