Rounding
Round to the nearest 10.
234
230
400-254
146
Kinsley made 12 chocolate chip cookies. Each cookie had 4 chocolate chips inside. How many chocolate chips did Kinsley use?
48
commutative property
8 X 9
9 x 8= 72
Round to the nearest 10.
5432
5430
765-342
423
Vivi bought 7 skirts that cost 6 dollars each. How much change did she get from 100 dollars?
58 dollars in change
distributive property
16 X 7
112
Round to the nearest 100.
885
900
8734-3087
5,647
Callen has 10 people over. He wants each person to get 3 donuts. If donuts come in boxes of 6, how many boxes will he have to buy?
5 boxes
18 X 6
108
Round to the nearest 100.
6754
6800
743,454-456,743
286,711
Blake had two ten dollar bills. His dad had three five dollar bills. They combined their money to buy a gift for Blake's mom that cost $31. How much change did they receive?
The team who picks this gets 200 extra points
4 dollars in change
Associative property
6 X 7 X 5
210
Round to the nearest 100.
784,595
784,600
800,452-295,681
504,771
Mason has 5 packages of gum. Each package has 9 sticks of gum. Joseph has 14 fewer sticks of gum than Mason. How many sticks of gum does Joseph have?
The team who picked this gets 300 extra points.
31
Associative property
8 X 4 X 5
160