Extend Multiplication Facts
Conversions
Traditional/Area Method
Area and Perimeter of Rectilinear shapes
Multistep Multiplication Problems
100
4 * 30=
120
100
1 L = ______ mL ; 1 kg = ______ g
1 L = 1,000 mL ; 1 kg = 1,000 g
100
Solve using any method you want. 4 * 36 =
144
100
What is the area 
7*4=28 yards
100
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 will not have enough money. Sarah's total will be $53. She will need three more dollars to have the correct amount.
200
70 * 20 =
1,400
200
4,000 mL = ______ L
4,000 mL = 4 L
200
Solve using the traditional method. 2 * 71 =
142
200
What is the area?
What is 25,700
200
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. Each pie costs $12.00. How many pies will Jon need? How much will Jon spend? Explain your thinking.
John will need to buy 5 pizza pies. I know this because 20 people * 2 slices each = 40 slices. 8 * ____ = 40 The missing number is 5. If each pie is $12.00 then I will multiply 12 * 5 and get 60. Jon will spend $60 on the 5 pies he is ordering for his class.
300
6,000 * 30 =
180,000
300
18 kg = _____ g
18 kg = 18,000 g
300
Solve using the area method. 83 * 94 =
7,802
300
What is the area of shape 3?
See answer
300
Katie has 2 flowerbeds to fill up with tulip bulbs. One flowerbed measures 24 feet by 6 feet, and the other bed measures 15 feet by 8 feet. Each bulb needs about a square foot of space. If Katie wants each bed to be half red tulips and half white tulips, how many of each color bulb should she buy?
Katie should buy 132 of each color tulip. She can plant a total of 264 tulips in her garden. Since Katie wants half red and half white, I split the total in half. That gave me 132.
400
800 * 40 =
32,000
400
4.5 kg = ______ g
4.5 kg = 4,500 g
400
Solve using the traditional method. 76 * 32 =
2,432
400
What is the area and perimeter?
What is 22 yards.
400
Jim’s doctor said he should walk about 10,000 steps each day for his health, so Jim bought a Fitbit to record his steps. About 2,120 of Jim’s steps equal a mile. If Jim has walked about 4 miles today, how many steps has his Fitbit recorded so far? How many more steps does Jim need to reach his goal?
Jim has walked 8,480 steps. Jim needs to walk 1,520 more steps to reach is goal.
500
70,000 * 400 =
28,000,000
500
3,500 mL = ______ L
3,500 mL = 3.5 L
500
Solve using the lattice method. 731 * 45 =
32,895
500
What is the area and perimeter?
What is 750 ft.
500
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…