Powers of 10
0.057 x 100
5.7
Estimate the product of 19.3 x 6
120
5.8 x 11
63.8
0.2 x 4.6
0.92
Jorge reads 15 pages a day for 7 days. Write an equation using the variable p and solve for how many pages he reads total.
15 x 7 = p
p=105 pages
92.3 x 104
923,000
Estimate the product of 3 x 0.85
3
2.54 x 12
30.48
0.9 x 0.6
0.54
Describe the difference between an underestimate and an overestimate.
An underestimate is less than the actual answer. An overestimate is greater than the actual answer.
7.25 x 0.1
.725
Estimate the product of 0.13 x 11
1
10.76 x 100
1,076
8.3 x 6.4
53.12
Isaac bought three packages of nuts. He bought one package of peanuts that weighed 3.07 pounds. He also bought two packages of pecans that weighed 1.46 pounds and 1.5 pounds. Did the peanut of the pecan weigh more? How much more?
peanuts; 0.11 pound
17.6 x 0.01
0.176
Estimate the product of 0.35 x 9
3.6
336 x 0.4
134.4
7.5 x 1.8
13.50
Anna's family had a party in a restaurant. Their food bill was $214.58. The tip for the servers was found by multiplying the food bill by 0.18. What was the cost of the food bill and tip before sales tax? Round to the nearest cent.
$253.20
214.8 x 0.001
0.2148
Estimate the product of 33.05 x 200
6,000
Which of the following equations is not true:
a) 225 x 4 = 9,000
b) 225 x 0.04 = 9
c) 22.5 x 4 = 90
d) 225 x 0.4= 90
a)
12.6 x 0.2
2.52
What is the area of a room with a length of 4.5 ft and a width of 16.5 ft?
74.25 sq ft