Estimation of Fractions to Zero One Half or One

Jake added 1/8 cup of sunflower seeds and 4/5 cup of banana chips to hissundae. Which is the best estimate of the total amount of toppings Jake added to his sundae?

• about 2 cups

• about 1 cup

• about 1 1/2 cups

• about 1/2 cup

3/8 - 1/6 =

• 1 1/2

• 1

• 0

• 2

• 1/2

Which statement is not correct? Use estimation to decide.

• 2/3 + 5/9 > 4/8 + 7/12

• 3/4 + 5/12 < 5/12 + 3/10

• 2/9 + 2/5 < 5/6 + 1/10

• 5/9 + 9/10 > 5/12 + 2/3

7/12 is closest to

• 0

• 1/2

• 1

3/4 is closest to

• 0

• 1/2

• 1

5/11 is closest to

• 0

• 1/2

• 1

8/11 is closest to

• 0

• 1/2

• 1

5/8 is closest to

• 0

• 1/2

• 1

3/8 is closest to

• 0

• 1/2

• 1

8/9 is closest to

• 0

• 1/2

• 1