Estimating
Estimate the product of 167 x 412
8,000
How many zeros in 5 x 10x
x
x+1
x-1
x+x
x
123 x 35= What are the 2 partial products?
615 + 3,690
Use an area model to solve 4321 x 23
99,383
There are 4 ounces of milk in a Starbucks latte. If they make 75 lattes, how many ounces of milk are used?
300 ounces
Estimate 398 x 205
8,000
9 x 10? = 9,000
103
Use an area model to solve 830 x 24
19,920
2,355 x 12=
28,260
A ticket to Disney World costs $154. If 17 students go to Disney World, what would be the total cost for tickets?
$2,618
About how many hours in a year?
400 x 20= 8,000
Which expression will be 8,000
8 x 101
8x 102
80 x 102
80 x 103
80 x 10 2
456 x 34=
15,504
There are 234 shirts in a box. There are 1,231 boxes. How many shirts total?
288,054
A bus can hold 68 people. There are 25 full buses. How many people are on the bus?
1,700 people
Estimate 4589 x 238
5000 x 200 = 10,000
45 x 104
450,000
Solve using area model 452 x 29. Show all the correct partial products.
8,588
2,048 x 375=
10,240 + ? + 614,400
143,360
Bob has 42 boxes of oranges to display at his store. Each box contains 12 bags of oranges. Each bag has 10 oranges. How many total oranges in his display?
5,040 oranges
About how much is 75 shirts that cost $23.75 each?
$20 x 80= $1,600
4.7 x 102
470
Joe used an area model to multiply 435 x 51. Here are the partial products.
2,000 400
1,500 30
50 5
Which partial product is incorrect?
400 x 50=20,000
3,545 x 25
88,625
UT plays 16 football games in March to a sell out crowd of 8,480. How many total people attended the games?
135,680 people