Estimating
Round to the nearest ten to estimate the product.
59 x 3
180
Use an area model to solve.
73 x 8
584
Use an area model to solve.
19 x 3
57
The answer to a multiplication problem is called a __________________
product
Solve 43 x 8 using any strategy you want
344
Round to the nearest ten to estimate the product.
29 x 43
1,200
Use an area model to solve.
34 x 5
170
Use an area model to solve.
34 x 2
68
An ___________ shows the number of objects in rows and columns
array
How do you write 349 in expanded form?
300 + 40 + 9
Round to the nearest ten to estimate the product.
71 x 90
6,300
Use an area model to solve.
64 x 32
2,048
Use an area model to solve.
82 x 91
7,462
The first step to estimating is ____________.
rounding.
How would you estimate 29 x 28? (equation and estimate)
30 x 30 = 900
Round to the nearest ten to estimate the product.
87 x 89
8,100
Use an area model to solve.
26 x 53
1,378
Use an area model to solve.
52 x 46
2,392
When you use an area model you first break up the numbers by _________ _________.
place value.
What are the partial products for
13 x 23
9, 30, 60, 200
Round to the nearest ten to estimate the product.
12 x 85
900
Use an area model to solve.
38 x 17
646
Use an area model to solve.
77 x 32
2,464
Repeated addition and ______________ are the same thing.
I had baskets, each filled with 4 apples and 18 oranges. How many total pieces of fruit did I have?
792 total pieces of fruit