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AlgebrA ThInKIngexpressIon coMpArIson (b)
Learn
Write an expression to match the situation. Then, write a number sentence to compare the numbers that are in the expression.
1.
Mr. Weaver has 25 peanuts and gives the same number of peanuts to each of his 5 children. Mrs. Mead has 4 peanuts.
Expression 1:
25 peanuts to each of 5 children 25
□20
5
Think:
25
□
5
=
5
Expression 2:
?
peanuts 20
?
Number sentence: 25 - 5 = 20
?
Write a number sentence to compare the numbers that are in the situation.
3.
There are 45 children in the red line and 23 in the blue line for the roller coaster. There are 62 children in line for the fun house.
4.
There are 72 prizes at the duck booth, and 49 prizes are given away. There are 56 prizes at the bottle booth.
2.
lola has 10 rings. Kari has 2 rings on each of 5 fngers.
Expression 1:
?
rings
Expression 2:
?
rings on each of
?
fngers
Think:
?
Number sentence:
?
5.
There are 3 riders on the swings. on the cars there are 30 riders separated equally into 5 groups.
6.
each of 5 children tosses 3 rings. Mike tosses 8 rings.
7.
There are 22 candy apples, and 18 are eaten. seven children buy drinks.
8.
naomi plays games for 45 minutes. Allie plays skee ball for 10 minutes and ring toss for 20 minutes.
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