Equivalent Expressions
Which expression has the same value as 7 × 235?
a. (7 × 200) + (7 × 30) + (7 × 5)
b. (7 x 200) + (7 x 25) + (7 x 3)
c. (7 x 200) + (7 x 20) + (7 x 5)
d. (6 x 200) + (6x 20) + (6 x 5)
a. (7 × 200) + (7 × 30) + (7 × 5)
What are the partial products of 4 × 213?
A. 800, 40, and 12
B. 800, 4, and 12
C. 80, 40, and 12
D. 800, 40, and 3
What are the partial products of 4 × 213?
800, 40, and 12
A bar diagram has 5 equal boxes, each labeled 24. Write an equation for the total t.
a. t = 24 x 9
b. t = 5 × 24
c. t = 24 + 5
d. t = 24 x 7
b. t = 5 × 24
There are 6 bags with 48 marbles in each bag. How many marbles are there altogether?
6 × 48 = 288 marbles
Estimate 198 × 4 by rounding 198 to 200.
200 × 4 = 800
Which shows 5 × 462 broken apart by place value?
A. (5 × 4) + (5 × 60) + (5 × 2)
B. (5 × 400) + (5 × 60) + (5 × 2)
C. (5 × 400) + (5 × 6) + (5 × 2)
D. (5 × 40) + (5 × 60) + (5 × 2)
(5 × 400) + (5 × 60) + (5 × 2) = 2,310
What is 6 × 1,204?
7,024
Four equal boxes each represent 135. What is the total?
4 × 135 = 540
A farm has 175 goats. It has 4 times as many sheep as goats. How many sheep are there?
175 × 4 = 700
Estimate 299 × 7 by rounding 299 to 300.
300 x 7 = 2,100
What is the value of (8 × 300) + (8 × 40) + (8 × 7)?
A. 2,736
B. 2,776
C. 2,376
D. 2,7760
B. 2,776
What are the partial products of 7 × 386?
A. 2,100, 56, and 42
B. 2,100, 560, and 42
C. 2,100, 560, and 4
D. 210, 560, and 42
B. 2,100, 560, and 42
What would 427 x 3 look like on a bar diagram?
three boxes labeled 427
There are 24 horses in a field, 3 times as many in a barn, and twice as many on a training course as in the field. How many horses are there in all?
24 + 72 + 48 = 144 horses
Use mental math to solve 195 × 6 by thinking of 195 as 200 − 5.
1,200 − 30 = 1,170
Which expression equals 6 × 1,095:
a. (6 × 1,000) + (6 × 90) + (6 × 5)?
b. (6 × 100) + (6 × 90) + (6 × 5)?
Give the answer of the problem too please.
a. (6 × 1,000) + (6 × 90) + (6 × 5) = 6,570
What is 8 × 2,457?
19,656
A bar diagram shows 7 equal groups of 36. Write an equation using w and find w.
w = 7 × 36; w = 252
A school orders 6 boxes of pencils with 125 pencils each and 4 boxes of pens with 80 pens each. How many pencils and pens are ordered altogether?
750 + 320 = 1,070 items
Use mental math to solve 498 × 8 by thinking of 498 as 500 − 2.
4,000 − 16 = 3,984
Break apart 9 × 684 using place value or area model, then find the product.
(9 × 600) + (9 × 80) + (9 × 4) = 6,156
What is 9 × 3,608?
32,472
A bar diagram has 4 equal boxes with a total of 864. What equation finds the value of each box, and what is the answer?
3,456
A music teacher buys 5 guitars costing $88 each. What is a good estimate of the total cost, and what is the exact cost?
5 x 88 = 440
Use mental math to solve 2,995 × 6 by thinking of 2,995 as 3,000 − 5.
18,000 − 30 = 17,970