Area Model
Solve with an area model:
349 x 4
1200 + 160 + 36 = 1,396
Solve with any strategy
34 x 57
1,938
Solve with any strategy
234 divided by 9
26
How many cups are in 3 pints?
2 x 3 = 6 cups
Which expression can you use to find 45×65
a. (40 x 5) + (60 x 5)
b. (40 x 60) + (5 x 5)
c. (45 x 6) + (45 x 5)
d. (45 x 60) + (45 x 5)
d. (45 x 60) + (45 x 5)
Solve with an area model:
3,402 divided by 3
1,000 + 100 + 34 = 1,134
Solve with any strategy:
56 x 29
1,624
Solve with any strategy
645 divided by 5
129
How many quarts are in 4 gallons
4 x 4 = 16 quarts
Which expression can you use to find 54×27
a. (50×4)+(20×7)
b. (50×20)+(4×7)
c. (54×20)+(54×7)
d. (54×2)+(54×7)
c. (54×20)+(54×7)
8,896 divided by 8
1,112
Solve with any strategy:
6279 x 4
25,116
Solve with any strategy
723 divided by 4
180 R3
How many pints are in 1 gallon
8 pints
Which expression can you use to find 32×48?
a. (30×2)+(40×8)
b. (32×40)+(32×8)
c. (30×40)+(2×8)
d. (32×4)+(32×8)
b. (32×40)+(32×8)
Solve:
264 x 3
792
Solve with any strategy
9851 x 6
59,106
Solve with any strategy
934 divided by 6
155 R4
Make a table to solve this conversion:
1 gallon = _________ quarts
3 gallon = _________ quarts
4 gallon = _________ quarts
5 gallon = _________ quarts
1 gallon = ____4_____ quarts
3 gallon = ___12_____ quarts
4 gallon = ___16_____ quarts
5 gallon = ___20_____ quarts
A warehouse has 360 boxes. It ships out 72 of them. The workers arrange the remaining boxes in equal stacks. Each stack holds 12 boxes. How many stacks are needed?
How to solve:
= 360-72
= 72 divided by 12
= 24 stacks are needed
Solve: 9 x 164
1,476
Solve with any strategy
26,913 x 3
80,739
Solve with any strategy
8,445 divided by 5
1,689
Make a table to solve this conversion:
1 pint = _________ cups
4 pint = _________ cups
6 pint = _________ cups
8 pint = _________ cups
1 pint = ____2_____ cups
4 pint = ____8_____ cups
6 pint = ___12_____ cups
8 pint = ___16_____ cups
A pet store owner has 243 goldfish. She sells 67 of them. She places the remaining goldfish in equal groups among her goldfish bowls. Each goldfish bowl holds 8 goldfish.
Part A
Which is the closest estimate for the number of bowls the pet store owner needs for the remaining goldfish?
How many bowls does the pet store owner need for the remaining goldfish?
Estimation: about 20
Actual answer: 22
This is accurate because the estimation is very close to the actual answer.