X by Exponents
5 x 101
50
0.5 x 0.1
0.05
Each student in class collected 50 toiletry bottles for Kindness Week. There are 20 students in the class. How many toiletry bottles did they collect in all?
1,000
Round this number to the nearest tens
63
60
Name the property of multiplication being used here:
8 x 9 = 9 x 8
Commutative property
4 x 102
400
1.8 x 0.1
0.18
A Girl Scout troop sells 85 boxes of cookies. There are 20 cookies in each box. How many cookies did they sell in all?
1,700
Round this number to the nearest tens:
75
80
Vocabulary: the ________ is the number in a power that tells how many times the base is used as a factor
Exponent
25 x 103
25,000
2.4 x 0.01
0.024
Max collected 60 aluminum cans. Each can weighs 12.5 grams. How many grams did the cans weigh in all?
750 grams
Round this number to the nearest hundred:
173
200
20,000 x 60,000
1,200,000,000
56 x 103
56,000
30 x 0.01
0.3
Thor earns $850 every month for his work in the Avengers. He saves 0.1 of each check. How much money is he saving each month?
$85.00
Round this number to the nearest hundred:
1,268
1,300
5,842 x 3
17,526
427 x 103
427,000
425 x 0.001
0.425
There are 40,000 residents living in Crystal Lake. 0.01 of these residents are 5th graders. How many total 5th graders live in Crystal Lake?
400
Round this number to the nearest tenth:
5.39
5.4
4.8 x 0.7
3.36