Addition with regrouping
Subtraction with regrouping
10 more 10 less 100 more 100 less
Associative property
Bonus points
100

480+228=

508

100

123-45=

78

100

100 more than 398 is

498

100

(6 + 2) + 2 =

(6 + 2) + 2 = 6 + (2 + 2)

8+2 = 6+ 4

10 = 10

100

Solve using expanded

374+518=

892

200

300+220=

520

200

432-56=

376

200

10 less than 908 is

898

200

= 10 + (4 + 5)

(10 + 4) + 5 = 10 + (4 + 5) 

14 + 5 = 10 + 9

19 = 19

200

Expanded form


425+232=

657

300

814+79=

893

300

407-110=

297

300

100 less than 101

1
300

(14 + 9) + 5 =

(14 + 9) + 5 = 14 + (9 + 5)

23 + 5 = 14 + 14

28 = 28


300

Expanded form


567 + 324 =

891

400

547+378=

925

400

574-387=

187

400

10 more than 868

878

400

= 18 + (6 + 10)

(18 + 6) + 10 = 18 + (6 + 10)

24 + 10 = 18 + 16

34 = 34

400

Base ten word form


438

4 hundreds 3 tens 8 ones

500

800+211=

1,011

500

900-54=

846

500

100 less than 1,008

908

500

(26 + 7) + 8 =

(26 + 7) + 8 = 26 + (7 + 8)

33 + 8 = 26 + 15

41 = 41

500

base ten word form

569

5 hundreds 6 tens 9 ones

500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500