Extended Multiplication Facts
4 * 30 =
120
1 L = ________ mL; 1 kg = ________ g
1,000; 1,000
Solve using the partial product method.
4 * 36 =
144
Find the perimeter of shape #1.
30 units
Jon wanted to buy pizza for the entire class. There are 20 people in his class. He figured that each person would eat two slices. If one pizza pie is 8 slices, how many pizzas will Jon need?
5 pizzas
70 * 20 =
1,400
4,000 mL = ___________ L
4
Solve using the partial product method.
2 * 71 =
142
Find the area of shape 2.
10 square units
Francine is buying 12 cartons of ice cream for her birthday party later. Each carton is $6. She pays with two $50 bills. How much change should Francine get?
$28
12 * 6 = $72 for the ice cream cartons
2 * 50 = $100, what Francine gives the cashier
$100 - $72 = $28 back in change
6,000 * 30 =
180,000
18 kg = ____________ g
18,000
Use the partial products method to solve.
83 * 9 =
747
Find the area of shape 3.
40 square units
Carlos bought a new TV. He paid with three $100 bills, seven $10 bills, one $5 bills and four $1 bills. How much did Carlos pay for his new TV?
$379
800 * 4 =
3,200
21 kg = __________ g
21,000
Use the partial products method to solve.
76 * 85 =
6,460
Find the area and perimeter of shape 4.
Area = 26 square units
Perimeter = 26 units
Sarah has to buy some items at the store. She wants to know if her $50 is enough to purchase all of the items. Sarah needs to buy 3 cases of water, each case is $7.00. She also needs to get a cake and 12 balloons. The cake costs $20. The balloons cost $1 each. Will Sarah have enough money? What is the exact amount Sarah will spend?
Sarah does not have enough money. 3 cases of water at $7 each cost $21 altogether. 12 balloons at $1 each cost $12 altogether. $21 + $12 + $20 for one cake is $53. Sarah needs $53 to buy all her items.
7,000 * 90 =
630,000
350 L = ________ mL
350,000
Use the partial products method to solve.
89 * 45 =
4,005
Find the area and perimeter of shape 9.
Area = 60 square units
Perimeter = 36 units
Robby’s Lawn Service must work in Mrs. Gilroy’s yard quickly because of a 3:00 p.m. storm prediction. Robby thinks it will take about 30 minutes for each task: trimming the bushes, mowing the lawn, weeding the flower beds, edging the lawn, raking, and cleaning up. They will begin working at 1:00 p.m. How long will it take 1 employee to do the work? How long for 2 employees working together? If you were Robby, how many employees would you send?
It would take 1 employee 180 minutes (3 hours). It would take 2 employees 90 minutes (1 and a half hours). I would send ____ employee(s) because…