Estimate Decimal Operations

Justin mixed 1.6 pints of red paint and 0.75 pints of white paint together to get the ultimate shade of pink for his sister's playhouse. He needs 3.5 batches of the pink paint to finish painting. How many pints of pink paint will Justin need to make?

• 8.75 pints

• 8.20 pints

• 8.235 pints

• 8.225 pints

Tags

CCSS.7.NS.A.3

Mrs. Dombrowsky bought 27 books for the class.  What was the cost for one book if she spent a total of $67.50?

• $2.13

• $0.21

• $0.25

• $2.50

Tags

CCSS.6.NS.B.3

Mrs. Burgess, Mrs. Curry, Ms. Davis and Mrs. Stowers went to lunch this weekend. The lunch total was $81.20. How much does each person owe if they split it evenly?

• $2.30

• $23.00

• $21.30

• $20.30

Tags

CCSS.6.NS.B.3

Dorian paid $15.95 and $6.50 for two books. About how much money did he pay for the books?

• $23

• $22

• $25

• $30

Paula wants to buy 3 shirts and 2 belts. The shirts cost $16.89 each, and the belts cost $8.97 each. Paula has $45.Which of these amounts is the best estimate of how much more money Paula needs in order to buy the shirts and belts?

• $16

• $10

• $24

• $5

Javier uses estimation to check the product for 7.24 x 3.9. Which of the following is a reasonable estimate for the product?

• 700 x 40 = 28,000

• 700 x 3 = 2,100

• 7 x 4 = 28

• 70 x 40 = 2,800

Tags

CCSS.5.NBT.B.7

ESTIMATE: 4.76 x 24

• 100

• 80

• 150

• 25

Tags

CCSS.5.NBT.B.7

Estimate the product.

23.2 × 41 ≈

• 800

• 900

• 1000

• 1200

Tags

CCSS.5.NBT.B.7

Arnold is solving this multiplication problem: 8.12 × 4.7. Which of these estimates can Arnold use to help him determine where the decimal point belongs in the product?

• 80 × 40 = 3,200

• 8 × 5 = 40

• 800 × 4 = 3,200

• 800 × 5 = 4,000

Tags

CCSS.5.NBT.B.7

Estimate 78.9 ÷ 12

• 6.575

• 65.75

• .6575

• 960

Tags

CCSS.5.NBT.B.7