Miscellaneous
The inverse operation of addition is what?
subtraction
123+111=?
234
100+99+203=?
402
Round to the nearest ten.
238
240
549-317=?
232
Which number represents the tens place in this number?
174
7
The 7 represents 7 groups of 10, or 70.
324+175=?
499
112+231+120=?
463
Round to the nearest 100.
213
200
298-248=?
50
724-369=355
Use addition to check your answer.
369+355=724
or 355+369=724
186+871=?
1057
596+684=?
1280
Round to the nearest ten.
609
610
549-218=?
331
Fill in the blank.
302+___=765
463
659+961=?
1620
902+12+805=?
1719
Round to the nearest 100.
542
500
454-388=?
66
Fill in the blank.
___+435=902
467
914+127=?
1041
384+270+133+149=?
963
Round the number to the nearest hundred.
983
1000
999-901=?
98