Vocabulary
________ is a set of steps used to solve a problem.
Algorithm
Which expression or value is equivalent to 102?
A. 102
B. 10 × 2
C. 10 × 10
D. 10 + 10
C. 10 × 10
Estimate the product.
643 x 18 =
600 x 20 = 12,000
Use an area model to find the area of the outdoor recreational center.
17m X 32m =
544 m2
Blaire reads 242 pages each week, How can she use partial products or an algorithm to find how many pages she reads in 6 weeks?
Blaire read 1,452 pages in 6 weeks.
The _______ of a number written in exponential
form tells you how many times the base is multiplied by itself.
Exponent
Which expression or value is equivalent to 104?
A. 1,000
B. 10 × 10 × 10 × 10
C. 10 × 4
D. 10 + 10 + 10 + 10
A. 1,000
B. 10 × 10 × 10 × 10
Estimate the product.
438 x 27
400 x 30 = 12,000
Use area model to solve: 28 x 132
3,696
A store has 60 boxes of shirts with 152 shirts in each box. How many shirts are there in all?
60 x 152 = 9,120
There are 9,120 shirts in all.
When multiplying multi-digit numbers, you can decompose the factors and add the ________ to get the product.
(2 words)
Partial Products
Which expression or value is equivalent to 4 x 104?
A. 1,004
B. 40 × 40 × 40 × 40
C. 4 x 10 × 4
D. 4 x 10 x 10 x 10 x 10
D. 4 x 10 x 10 x 10 x 10
Which equation represents a reasonable estimate for 648 x 19?
a. 700 x 10 = 7,000
b. 650 x 20 = 13,000
c. 600 x 10 = 6,000
b. 650 x 20 = 13,000
Use partial product to solve:
325 x 73 =
21,000
1,400
350
900
60
+ 15
23,725
What is the area of a football field with is 53 yards wide and 120 yards long?
53 x 120 = 6,360
The football field is 6,360 square yards.
To estimate a solution, you can _______ the values used before performing operations.
The ________ as approximate solution to a problem
Round
Estimate
Which expression or value is equivalent to 6 x 102?
A. 6,102
B. 60 × 10 × 2
C. 600
D. 10 x 2 x 6
C. 600
The rock museum has 324 display drawers. Each drawer holds 23 rock samples. About how many rock samples does the museum have?
There are about ______ rock samples.
About 6,000
Complete the Partial Products to find 328 X 14
328
x 14
3,000 --> 10 x 300
_____ --> 10 x 20
_____ --> 10 x 8
1,200 --> 4 x 300
80 --> 4 x 20
_____ --> 4 x 8
200, 80, 32
4,592
Adult dogs have 42 teeth. Over the course of a week, Ruby checks the teeth of 65 dogs. How many teeth does she check in all?
42 x 65 = 2,730
Ruby checks 2,730 teeth.
The ______ ______ of a number includes a base raised to a power called the _________ .
Exponential Form
Exponent
Which expression or value is equivalent to 5 x 103?
A. 5,103
B. 5 x 10 x 10 x 10
C. 5 × 10 × 3
D. 5,000
B. 5 x 10 x 10 x 10
D. 5,000
On a school trip, 54 students went to a museum. Each ticket coast $23. About how much did all the students spend on tickets?
50 x 20 = $1,000
Solve using standard algorithm
684 x 32 =
1,368
+ 20,520
21,888
9,150 x 7 = 64,050
Maria walks 64,050 steps in 1 week.