Rounding
Round 56 to the nearest ten.
60
Find the sum
323+154
477
Find the difference
738-315
423
Round 423 to the nearest hundred.
400
Find the sum
431+384
815
Find the difference
632-481
151
Round 357 to the nearest ten.
360
Find the sum
237+443
680
Find the difference
523-246
277
Round 252 to the nearest hundred.
300
Find the sum
729+195
924
Subtract
725-196
529
Round 275 to the nearest ten.
280
Find the sum
437+492
929
Subtract
802-267
535