Area Models
Draw and label an area model, and then solve for 20 x 70
1,400
Show how to solve 3 x 78 using the partial product strategy.
234
Solve 9 x 18 using the standard algorithm.
162
Last year Mr. Manny's rectangular garden has a width of 7 meters and an area of 21 meters. This year he wants to make the garden 3 times as long and two times as wide.
Solve for the length of LAST YEAR's garden using the area formula. Draw and label the measurements of THIS YEAR's garden.
last year Length = 3
This year Length = 9 Width = 14
Draw and label an area model, and then solve for 30 x 50
1,500
Show how to solve 4 x 431 using the partial product strategy.
1,724
Solve 53 x 6 using the standard algorithm.
318
How much area will Mrs. Ramsey have in a garden if it is 7 feet wide and 4 feet long?
28 sq. ft.
Draw and label an area model, and then solve for 2 x 312
624
Show how to solve 7,035 x 5 using the partial product strategy.
35,175
Solve 104 x 7 using the standard algorithm.
728
The kindergarten playground is 20 yards wide and 30 yards long. We are going to reuse the fence going around that playground to start a fence around the big playground. The big playground is 45 yards wide and 120 yards long. How much more fence will we need?
Small Playground Perimeter = 100 yards
Big playground perimeter = 330 yards
Difference = 230 yards
Draw and label an area model, and then solve for 5 x 1,231
6,155
Show how to solve 8 x 1,305 using the partial product strategy.
10,440
Solve 26 x 8 using the standard algorithm.
208
Mrs. Mallett's classroom has 5 rows of 12 desks. She wants to set up the cafeteria with twice as many rows and twice as many desks in each row. How many desks will she need to put in the cafeteria?
Write an equation to solve and assess the REASONABLENESS of your answer.
240 desks.
5x2=10, 12x2=24, 10x24= 240
Estimate for reasonableness:
12 is about 10. 10x2=20. 20x10 = 200.
Draw and label an area model, and then solve for 11 x 4,286
47,146
Show how to solve 6,034 x 5 using the partial product strategy.
30,170
Solve 9,182 x 4 using the standard algorithm.
36,728
FREEBIE! 500 points for everyone.
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