Add Quick Facts
Adding
Subtraction
Subtraction w/ Borrow
Estimating
100
7 + 8
What is 15
100
554 + 926
What is 1480
100
85 - 14
What is 71
100
57 - 39
What is 18
100
Front End estimate 14,897+ 3405
What is 10,000
200
11 + 3
What is 14
200
4875 + 6924
What is 11,799
200
87 - 34
What is 53
200
489 - 397
What is 92
200
Round to nearest hundred 8796 - 2345
What is 6500
300
15 + 12
What is 27
300
1032 + 25896
What is 26,928
300
9000 - 4758
What is 4242
300
5789 - 4896
What is 893
300
Church Debolt 758 + 227
What is 990
400
30 + 13
What is 43
400
57,958,111 + 27,534,296
What is 85,492,407
400
35,784 - 28, 740
What is 7044
400
80,570 - 36,612
What is 43,958
400
Round to Nearest Hundred 178,863 + 2,375
What is 181,300
500
18 + 17
What is 35
500
458,796,457 + 475,821,477
What is 934,617,934
500
87,652,999 - 53,241,876
What is 34,411,123
500
123,456,789 - 987,654
What is 122,469,135
500
Church Debolt 378+ 458
What is 840
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