Multiplying Using Expanded Form
18×8.7
224.1
3×1.22
3.66
Three friends go to the local farmers’ market. Latasha spends $3.35. Helen spends 4 times as much as Latasha. Dee spends $7.50 more than Helen. How much does Dee spend?
$20.90
7.8 × 3.12
24.336
0.4 × 0.2
0.08
23×56.1
1,290.3
2×0.19
0.38
At a bagel shop in town, each bagel costs $0.79. If Mr. Thomas buys a box of 8 bagels, how much will he pay for the bagels?
$6.32
6.8 x 1.2
8.16
0.2 × $0.30
$0.06
A day on the planet Mercury lasts about 58.6 Earth days. How many Earth days
are there in 14 days on Mercury
820.4
5 × 0.06
0.3
A recipe for chili calls for three types of beans. How much will the beans cost if black beans are $12.15, kidney beans are $16.27, and spicy refried beans are twice the cost of black beans?
$52.72
0.9 x 0.8
0.72
0.09 × 0.7
0.063
19×0.75
14.25
2×0.38
0.76
Three students in the garden club enter a pumpkin-growing contest. Jessie’s pumpkin is worth $12.75. Mara’s pumpkin is worth 4 times as much as Jessie’s. Hayden’s pumpkin is worth $22.25 more than Mara’s. How much is Hayden’s pumpkin worth?
$73.25
84.5 x 5.5
464.75
0.3 x 0.2
0.06
The length of a day is the amount of time it takes a planet to make a complete rotation on its axis. On Jupiter, there are 9.8 Earth hours in a day. How many Earth hours are there in 46 days on Jupiter?
You can use a model and partial products to solve the problem.
450.8
Giant tortoises move very slowly. They can travel a distance of about 0.17 mile in 1 hour. If a giant tortoise travels at the same speed, how far could it move in 4 hours?
0.68
A group of friends go to a local fair. Jayson spends $3.75. Maya spends 3 times as much as Jayson. Tia spends $5.25 more than Maya. How much does Tia spend? Use the graphic organizer below to help you solve the problem.
$16.50
2.39 x 2.7
6.453
0.02 × 0.2
0.004