Multiples of 10 x Decimal
10 x 0.8
8
0.2
0.20 x 0.5
0.1
False
Mr. Turner bought 6 passes for his family to attend the county fair. Each of the six family members got a souvenir at the fair. The passes cost $17.25 each and the souvenirs were $3.99 each. How much did Mr. Turner spend at the county fair?
Mr. Turner spent $127.44 at the county fair.
100 x 4.6
460
6 x .5
3
0.44 x 0.08
0.0352
True Or False: The 0 after the decimal can be ignored in a whole number Ex: 34.0
True
Natalia bought 5 lilies and 3 roses. The rest of the flowers she bought were carnations. Lilies cost $0.75 each, and roses cost $0.65 each. If Natalia spent a total of $7.05 on flowers, how much money did she spend on carnations?
$1.35 on carnations
10 x .003
0.03
.3 x 23
6.9
1.2 x .02
0.024
Where does the decimal point go in the product?
9.01 x 8.3 = 7 4 7 8 3
74.783
Which of the following are equivalent (EQUAL) to the expression 0.78 × 102?
a.) 0.78 × 100
b.) 7.8 × 10
c.) 78 × 10
d.) 78
e.) 780
a.) 0.78 × 100
b.) 7.8 × 10
and
d.) 78
.038 x 1000
38
42 x 2.2
92.4
.9 x 9.99
8.991
If you multiply two decimals less than one (Ex: 0.8 or 0.003), can you predict whether the product (answer) will be LESS than or GREATER than either of the factors?
LESS! When you multiply any factor by something less than 1, the product (answer) will be smaller
A café uses 34.75 liters of milk a day. Assuming the café uses the same amount of milk every day, about how many liters of milk should the café manager order for a seven-day week? Show how you estimated
About 245 liters
7 × 34.75 is about 7 × 35 = 245
What power od 10 makes the equation true?
70.7 × 10? = 70700
103
79 x 7.23
517.17
.028 x 3.25
0.091
True or False:
2.98 × 103 = 2,980
TRUE (103 = 1000, so 2.98 x 1000 = 2,980)
Mr. Hackman is buying lunch at the sandwich shop for his family. He buys three veggie wraps and one grilled cheese. Veggie wraps cost $4.25 and grilled cheese costs $3.49. How much money did Mr.Hackman spend in all?
Mr. Hackman spent $16.24 for all the sandwiches.
($4.25 x 3) + $3.49 = $16.24