Powers of 10
Decimal Multiplication
Equal Expressions
Word Problems
Estimating
100
A bottle of eye drops has 0.45 fluid ounces of liquid. How much liquid is in 104 bottles of eye drops?
4,500 ounces
100
0.8 x 0.09
0.072
100
Select all the expressions that are equal to 0.7 × 0.41.
a. 7/100 x 41/100
b. 7/10 x 41/100
c. 41/100 x 7/10
d. 41/10 x 7/10
e. 70/100 x 41/100
b.
c.
e.
100
A rectangle has the width of 2.5 and the length of 9.4. What is the area?
23.5
100
Estimate the decimal to the nearest whole
4.365
4
200
In what direction do you move the decimal when multiplying by a power of 10.
right
200
Jamal buys 33 bolts that cost $0.38 each. What is the total?
$12.54
200
Select the equations that the number 103 makes true.
a. 6.01 x 103 =601
b. 0.305 x 103= 305
c. 0.54 x 103= 540
d. 0.97 x 103 = 97
b and c
200
Jade’s cat weighs 8.3 pounds. Her dog weighs 5 times as much as her cat.
Write an equation AND solve the equation for this problem.
8.3 x 5 =41.5
200
Estimate the decimal to the nearest tenths.
25.68
25.7
300
When solving for a power of 10 what tells you how many place values to move over?
The exponent or the number of zeros
300
At the grocery store, peaches cost $2.60 per pound. Grace bought 2.3 pounds of peaches.
How much did Grace spend on peaches?
$5.98
300
Select all the equations that the decimal 0.43 makes true.
a. 103 x 0.43 = 430
b.101 x0.43 =4.3
c. 100 x 0.43 = 0.43
a, b, c
300
A school bookstore has the following items for sale.
How much will Luke pay for 4 notebooks?
$11.56
300
Estimate to the nearest whole and solve.
5 x 6.2
30
400
12.36 x 1000 =
12,360
400
One gallon of milk has 128 fluid ounces. How much milk is in 6.5 gallons?
832 ounces
400
Which expression shows the area of the shaded part of the grid?
0.4 x 0.7
400
Vaughn paints his porch floor and also the porch floors of 9 neighbors. Each floor is a rectangle that is 8.4 feet long and 6.9 feet wide. What is the exact total area of all the porch floors that Vaughn paints?
521.64 feet
400
Estimate to the nearest tenths and solve
14.2 x 5.67
80.94
500
(8.92 x 102) + (8.3 x 10)=
975
500
Rocio poured a square patio outside her back door. Each side measured 8.5 feet. What is the perimeter of the square?
34 feet
500
Tara bought a 1.8-acre lot. She is going to have sod put on 0.6 of the lot.
a.
b.
c.
d.
d
500
Each week as part of her workout, Monica walks 0.5 mile, runs 1.6 miles, and then walks 0.75 mile.
How many total miles will Monica walk and run in a year? Reminder: there are 52 weeks in a year.
148.2
500
Estimate to the nearest whole and solve.
254.24 x 6.8
1778