Subtraction
Rounding
Multiplication
Counting by 3's
Surprise!!
100
231-164
What is 64.
100
Round to the nearest 10. 67
What is 70
100
2 x 3
What is 6.
100
Count 3 3's.
What is 9
100
4591 + 2376
What is 6967.
200
638-489
What is 149.
200
Round to the nearest 10. 43
What is 40.
200
5 x 4
What is 20.
200
Count 6 3's.
What is 18
200
852-206
What is 646.
300
1262-1177
What is 85.
300
Round to the nearest 10. 85
What is 90.
300
4 x 3
What is 12
300
Count 7 3's
What is 21
300
6 x 7
What is 42
400
600-342
What is 258.
400
Round to the nearest 10. 13
What is 10.
400
9 x 7
What is 63
400
Count 8 3's.
What is 24
400
Round to the nearest 10. 87
What is 90.
500
4069-2184
What is 1885.
500
Round to the nearest 100. 349
What is 300.
500
6 x 8
What is 48.
500
Count 9 3's
What is 27.
500
8 x 8
What is 64.
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