Missing Area
Missing Perimeter
Multiplication
Division
?
100
Area = 20 sq ft
Length = 5 ft
Width= ?
Width = 4 ft
100
P = 20 cm
Length = 4 cm
Width = ?
6 cm
100
5x7
35
100
30 / 6
5
100
4th Grade students a Shadygroove Elemewntary School are collecting water bottles to donate to the Fire Department.
Their goal is to collect 1,200 bottles of water.
So far, they have collected:
• 27 cases of 24 bottles
• 19 cases of 16 bottles
How many more bottles of water do they need to collect to meet their goal of 1,200?
248
200
Area = 56 sq ft
Length = 8 ft
Width= ?
Length = 7 ft
200
P = 56 cm
Length = 8 cm
Width = ?
W = 20 cm
200
14x5
70
200
77 / 7
11
200
Use a division strategy to solve 288 ÷ 9
32
300
Area = 570 sq ft
Length = 5 ft
Width= ?
Width = 114 ft
300
P = 500 cm
Length = 100 cm
Width = ?
W = 150 cm
300
13x20
260
300
288 / 2
144
300
Finish the area model to solve 882 ÷ 7
126
400
Area = 672 sq ft
Length = ?
Width= 6 ft
W = 112 ft
400
P = 904 cm
Length = 60 cm
Width = ?
Width = 392 cm
400
39x11
429
400
726 / 6
121
400
Use a multiplication strategy to solve 1674 x 6
10,044
500
Area = 8024 sq ft
Length = 8 ft
Width= ?
Width = 1003 ft
500
P = 846 cm
Length = 134 cm
Width = ?
Width = 289 cm
500
25x56
1400
500
935 / 5
187
500
Jonah is works at a button factory. He has to fit 68 buttons in each box. There are 51 boxes that needs buttons.
Jonah calculates there are 3,468 apples in all.
Use estimation strategies to explain whether or not the Jonah calculation is reasonable.
Jonah's calculations are reasonable. We can round 51 to 50 and 68 to 70. If we multiply these numbers, we would get 50 x 70= 3,500.