560+300=
860
-400 +20
830--->_____---> ______
830 -______=_________
450
solve using place value chart and check using subrtaction:
328+294=
622
Draw a place value chart and check your work using addition:
718-239=
300-167=
133
440-290=
150
-___ +_____
670---> 270---->290
670 -______=290
-400, +20
380
solve using place value chart and check using subrtaction:
546+394=
940
Draw a place value chart and check your work using addition:
400-259=
141
671-398=
273
=730-270
460
-400 -40
___--->______----> 218
_____ -440=218
658,258
658
solve using place value chart and check using subrtaction:
361+547=
908
Draw a place value chart and check your work using addition:
500-387=
113
____=608-259
349
750+167=
917
-200 -30
____--->______---->569
_____- 230=569
339
solve using place value chart and check using subrtaction:
687+279=
966
Draw a place value chart and check your work using addition:
800-486=
314
____=900-367
533