Time yourself!
Addition and Subtraction
For this activity you will need to set an online timer. First make your own copy of the doc with your name. Complete each equation. You will then need to check the answers are correct. Do this for each set. Record your time at the bottom of this doc.
Set One
12 + 8 = 20
7 + 9 = 16
20 - 11 = 9
15 - 9 =7
6 + 14 = 20
17 - 6 = 11
19 - 12 = 8
12 + 5 =17
11 - 7 = 4
13 - 5 =8
4 + 15 = 19
18 - 7 =11
Set Two
11 + 7 = 18
8 + 7 = 15
20 - 9 =11
15 - 8 =7
7 + 11 =18
16 - 9 =7
17 - 12 = 5
9 + 7 =16
13 - 8 =5
14 - 9 =5
6 + 13 = 19
17 - 8 =10
Set Three
12 + 8 = 20
9 + 6 = 15
11 + 8 = 19
12 + 5 = 17
14 - 9 = 5
19 - 8 = 11
19 - 15 = 4
6 + 12 = 18
13 - = 4
? + 8 = 19
5 + ? = 16
? - 9 = 8
Set Four
45 + ? = 100
37 + ? = 100
? + 61 = 100
78 + ? = 100
83 + ? = 100
? + 59 = 100
? + 72 = 100
31 + ? = 100
? + 12 = 100
17 + ? = 100
? + 84 = 100
23 + ? = 100
My time: 12 minutes
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