Show:
2-Digit Addition
2-Digit Subtraction
Rounding
Estimate
Multiplication
100
21
What is 10 + 11
100
11
What is 21 - 10
100
10
What is 14 rounded to the nearest 10?
100
20
12 + 11 is about?
100
4
What is 2 X 2
200
28
What is 11 + 17
200
22
What is 33 - 11
200
40
What is 36 rounded to the nearest 10?
200
50
29 + 21 is about?
200
18
What is 6 X 3
300
71
What is 45 + 26
300
30
What is 60 - 30
300
80
What is 77 rounded to the nearest 10?
300
110
57 + 45 is about?
300
35
What is 7 X 5
400
84
What is 57 + 27
400
35
What is 75 - 40
400
100
What is 149 rounded to the nearest 100?
400
200
To the nearest hundred, 121 + 111 is about?
400
72
What is 9 X 8
500
97
What is 48 + 49
500
71
What is 95 - 24
500
1,600
What is 1,590 rounded to the nearest 100?
500
800
To the nearest hundred, 461 + 311 is about?
500
55
What is 11 X 5