Rounding Decimals and Estimation

What is 56 rounded to the nearest ten?

• 40

• 70

• 50

• 60

What is 39 rounded to the nearest ten?

• 40

• 30

• 35

• 45

What is 104 rounded to the nearest ten?

• 90

• 95

• 110

• 100

Estimate the SUM:
9.1 + 7.9

• 15
• 17
• 18
• 2

When you estimate, are you looking for the exact amount or a reasonable amount?

• exact
• reasonable

Estimate the PRODUCT: 
2.5 x 3 

• 9
• 12
• 6
• 99

Estimate the DIFFERENCE: 
20.2 - 10.3

• 10
• 19
• 22
• 18

Estimate the QUOTIENT: 
24.7  ÷  4.68

• 7
• 4
• 5
• 3

ESTIMATE the PRODUCT
99 X 7=

• 70
• 700
• 7,000
• 7

ESTIMATE the PRODUCT
78 X 6=

• 4,200
• 420
• 480
• 4,800