80+0= 80
-addition property of Zero
-associate property of addition
-communicative property of addition
addition property of zero
567+36
603
594-345=
249
Sarah has 387 tokens, and Paul has 295. They use a total of 461 tokens. How many tokens do they have now?
t = 387 + 295
r = 682 − 461
221 tokens
10x10
100
(9+7) +3=9+(7+3)
-addition property of Zero
-associate property of addition
-communicative property of addition
associate property of addition
603+678
1,281
478-389=
89
There are 125 second graders and 118 third graders at a museum. There are 249 more adults than students at the museum. How many adults are at the museum?
s = 125 + 118
a = 249 + 243
492 adults
45/5=
9
4+5=5+4
-addition property of Zero
-associate property of addition
-communicative property of addition
communicative property of addition
234+197
431
761-275=
486
Movie Premiere Day Number of People
Thursday 346
Friday 897
Saturday 512
How many more people went to see the movie on Friday than on Thursday and Saturday combined?
346 + 512=858
897 − 858=39
39 more people
35/7=
5
(7+3)+6= 7+ (3+6)
-addition property of Zero
-associate property of addition
-communicative property of addition
associate property of addition
679+347
1,026
430-265=
165
There are three candidates in an election. Candidate A receives 241 fewer votes than Candidate B. Who wins the election?
Candidate Number of Votes
A 395
B ?
C 642
B=609
Candidate C wins
Round 784 to the nearest tens and hundreds
780
800
write an equation showing the associative property of addition
*answers will vary*
478+875+56+45=
1,454
600-278=
322
How many more apples were picked on Friday than on Saturday and Sunday combined?
Day Number of Apples Picked
Friday 516
Saturday 239
Sunday 182
95 apples
239+182=421
516-421=95
Round 436 to the nearest tens and hundreds
440
400