Mental Math
Subtraction
Addition
Word Problems
Estimation
100
Add using mental math: 46 + 72
118
100
756 - 372
384
100
538 + 218
756
100
Susie had $45.00 in her bank account. She went to the store and spent $13.00 on a book. How much money does Susie have left?
$32.00
100
Estimate to find the answer: 362 + 178
180 or 200
200
Use mental math to subtract the numbers: 75 - 52
23
200
891 - 677
214
200
671 + 908
1579
200
Brandon had 352 cats. He went to the shelter and bought 52 more. How many cats did Brandon have altogether?
404
200
Round to the nearest tens place and find the answer: 157 + 317
480
300
Use mental math to solve the problem: 153 + 168
321
300
1,962 - 543
1,419
300
982 + 82
1064
300
Jessica had 76 apples in her bag. When she went to school she gave Michele 17, Mary 5, and Jacob 2. How many apples did Jessica have left?
52
300
Round to the nearest hundred and find the answer: 1,892 - 1,564
300
400
Use mental math to solve the problem: 985 - 655
330
400
1,908 - 752
1156
400
1,374 + 952
2326
400
Michael and Jordan wanted to buy some ice cream. Michael had $2.50 and Jordan had $6.00. The total amount of the ice cream was $10.00. Do Michael and Jordan have enough? How much do they have?
No, they only have $8.50
400
Round: 5,672 + 3,921
10,000 or 9700
500
Use mental math to solve the problem: 1,357 - 537
820
500
2,875 - 1,300
1575
500
3,841 + 1,297
5138
500
Justin wanted to bake 300 cookies. With one batch of cookie mix, Justin made 47 cookies. How many more cookies does Justin have to bake? Draw a picture and write an equation
253
500
Round: 5,816 - 2,416
4,000 or 3,400
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