2-digit multiplication
20 x 10
200
Formula for area
l x w
300 x 3
900
There are 60 seconds in a minute and 60 minutes in an hour. How many seconds are in one hour?
1,200 seconds.
7 x 1,000
7,000
30 x 5
150
Draw an area model to represent 40 × 60.
a rectangle with 60 length and 40 width.
489 x 2
978
Every night, Lucia reads 40 pages. How many total pages does she read at night during the 30 days of November.
1,200 pages.
5 ones x 10 =
5 tens or 50
96 x 7
672
The formula for perimeter?
2 x l + 2 x w
1,750 x 8
14,000
The length of a rectangular deck is 4 times its width. If the deck’s perimeter is 30 feet, what is the deck’s area?
Area = 36
____ x 9 = 9,000
1,000
43 x 6
258
find the perimeter of a square with the length of 42
168
8,192 x 6
49,152
Katie cut out a rectangular piece of wrapping paper that was 2 times as long and 3 times as wide as the box that she was wrapping. The box was 5 inches long and 4 inches wide. What is the perimeter of the wrapping paper that Katie cut?
Perimeter = 44 inches
36 x 1,000=
36,000
79 x 20
1,580
A rectangle is 4 inches wide and 5 inches long. The larger rectangle is 3 times the width and 2 times the length what is the area of the larger rectangle?
120 inches
9,988 x 7
69,916
Brinn’s rectangular kitchen has an area of 81 square feet. The kitchen is 9 times as many square feet as Brinn’s pantry. If the rectangular pantry is 3 feet wide, what is the length of the pantry?
length= 3
5 x 5,000 + 2 x 400 =