Addition With Regrouping
Subtraction With Regrouping
3-Digit Addition With Regrouping
3-Digit Subtraction
Surprise!
100
93 + 27=
120
100
97-18=
79
100
296+370=
666
100

500-363=

137

100

18+23=23+18

What property is this?

Commutative Property

200
54 + 76=
130
200
83-47=
36
200
511+396=
907
200

600-296=

304

200

(27+25)+11=27+(25+11)

Associative Property

300
28+96=
124
300
92-63=
29
300
393+371=
764
300

800-652=

148

300

25+___=25

Identity Property

400
47+56=
103
400
73-56=
17
400
674+190=
864
400

600-258=

342

400
What is the missing number? 

87+43=____+87

What property is this?

43

Commutative Property

500
39+68=
107
500
64-38=
26
500
754+197=
951
500

700-198=

502

500

(23+45)+11=(23+11)+45

What property is this?

Commutative Property

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