3 Digit Addition
440 - 352
90
Ann has 641 marbles. Her sister gives her 325 more. How many does she have now?
641 + 325 =966
If you solved a subtraction equation, what operation could you use to check your work?
Addition
456 - 167
289
Joshua had 632 pieces of candy. He shares some with his classmates. Now he has 231. How many did he share with his classmates?
632 - 231 =401
If 232 + 123 =355, then what equation could you use to check your work?
355 - 123 =232 or 355 -232 =123
Alex's family travels 523 miles south. They must reach 982 miles to reach their destination. How many more miles do they have left to drive?
982 - 523 =459
If 732 - 234 =498, then what equation could you write to check your work?
234 + 498 =732
232 + 448
680
Milly has 58 toys. She has 13 more than Tammy. How many toys do they have altogether?
58-13=45 Tammy
45 + 58 =103 altogether
Solve, 853 - 144 =_____ and check your work.
709.
709 + 144 =853
There are 78 boys in 3rd grade. There are 14 more girls in 3rd grade. How many boys and girls are in 3rd grade?
78+14=92 girls
92+78=170 boys & girls
Solve. 542 + ____ = 972 & check your work
430.
972 - 542 =430