Associative
(12+6) + 5 = (5+ ?) + 6
12
60+ 0=
60
34+57= ____ +_____
57+34
345+993
1338
34+62+10=
106
(56+76) + 12 = (12+76) + ?
56
True or false
60+ 0= 0
False
456+839 _____ 893+ 456
equal or not equal
not equal
90+67=
157
5+9+10=
24
(45+97) + 24 (24+99 ) + 45
Equal or not equal?
670+0=
7+5___ 5+7
Equal or not equal
equal
827+76=
903
100+ 78+ 12=
190
130
567+ 0= 566
True or false
197+____ = 664+ 197
664
302+103=
405
35+45+23=
103
(78+ 620) + 78 = (78+ ? ) 620
78
567+ 0= ?
567
572+993 = _____ + _____
993+ 572
828+234=
1,062
632+200+102=
934