Addition with regrouping
480+228=
508
123-45=
78
100 more than 398 is
498
(6 + 2) + 2 =
(6 + 2) + 2 = 6 + (2 + 2)
8+2 = 6+ 4
10 = 10
Solve using expanded
374+518=
892
300+220=
520
432-56=
376
10 less than 908 is
898
= 10 + (4 + 5)
(10 + 4) + 5 = 10 + (4 + 5)
14 + 5 = 10 + 9
19 = 19
Expanded form
425+232=
657
814+79=
893
407-110=
297
100 less than 101
(14 + 9) + 5 =
(14 + 9) + 5 = 14 + (9 + 5)
23 + 5 = 14 + 14
28 = 28
Expanded form
567 + 324 =
891
547+378=
925
574-387=
187
10 more than 868
878
= 18 + (6 + 10)
(18 + 6) + 10 = 18 + (6 + 10)
24 + 10 = 18 + 16
34 = 34
Base ten word form
438
4 hundreds 3 tens 8 ones
800+211=
1,011
900-54=
846
100 less than 1,008
908
(26 + 7) + 8 =
(26 + 7) + 8 = 26 + (7 + 8)
33 + 8 = 26 + 15
41 = 41
base ten word form
569
5 hundreds 6 tens 9 ones