Estimation
Multiply Decimals
Divide Decimals
Multiply and Divide by 0.1 and 0.01
Decimal Word Problems
100
Estimate the product by rounding to each numbers greatest place value
11times4.2
40
100
12times2.4
28.8
100
Divide
15.5div5
3.1
100
3.1times0.1
0.31
100
Alex wants to see a movie, buy a popcorn, and get two candy bars. He only has $10. Can he afford to do this? Explain.
Yes. His total will be $9.95
200
Estimate the quotient
88.92div3
30
200
14.8times3
44.1
200
Divide
198.35div5
39.67
200
19.37div0.01
1,937
200
Janice sells homemade cookies. On a dozen cookies she spends $0.60 on flour, $0.30 on sugar, $0.80 on eggs and $0.30 on packaging. If she sells a dozen cookies for $8.00, how much profit does she make?
$6
300
Estimate the product by rounding to the nearest whole number
421times5.6
2526
300
1.39times2.1
2.919
300
Divide
81.25div13
6.25
300
13div0.01
1,300
300
Marco spent $6.65 for lunch and $1.95 for a snack. Johnny spent $4.75 for lunch and $1.00 for a snack. How much more money did Marco spend than Johnny?
$2.85
400
Estimate the quotient by rounding to the nearest whole number
288div16.09
18
400
109.1times3.4
370.94
400
Find the quotient
3.936div1.2
3.28
400
9times0.01
0.09
400
Jaylen left home with two $20.00 bills. He went to the movies and bought two movie tickets, two popcorns, a soda, and a candy bar. How much change should he receive?
$21.65
500
Parker and his mom are buying bags of candy for Halloween. Each bag weighs 15.2 ounces. They buy 7 bags of candy. Write and solve an expression that can be used to estimate the total number of ounces of candy that they have.
15times7=105
500
5.281times3.7
19.5397
500
Find the quotient
57.536div6.2
9.28
500
Which expression can be used to solve the problem
16.98div0.1=?
a. ? × 16.98 = 0.1
b. 0.1 ÷ 16.98 = ?
c. 0.1 ÷ ? = 16.98
d. ? × 0.1 = 16.98
? × 0.1 = 16.98
500
Deacon and Lukas are sharing the cost of a pizza party. Deacon is buying 3 pizzas for $17.00 each and 3 orders of garlic bread for $6.00 each. Lukas is paying $28.00 for napkins, paper plates, and sodas. He is bringing the dessert which costs $12.00 to make. How much more money is Deacon spending than Lukas?
$11 more