Estimation

Estimating is to....

• find the exact answer

• find something close to the correct answer

• use an algorithm

Tags

CCSS.3.OA.D.8

When estimating 347+ 455 you should...

• Round both numbers to the nearest ten and add them mentally

• Line both numbers up and solve to find the answer

• Round both numbers to the nearest hundred and add them mentally

• Round both numbers to the nearest tenth and add them mentally

Tags

CCSS.3.NBT.A.1

CCSS.3.OA.D.8

Amy had 13 jelly beans in her left hand and 28 in her right hand. Estimate how many jelly beans Amy had in all.

• 45
• 40
• 50
• 30

Tags

CCSS.3.NBT.A.2

Amy had 13 jelly beans in her left hand and 28 in her right hand. Estimate how many jelly beans Amy had in all.

• 45
• 40
• 50
• 30

Bobby has 44 toy cars and trucks. He also has 62 ninja turtles and soldiers. Estimate how many toy cars, trucks, ninja turtles and soldiers Bobby has.

• 86
• 10
• 100

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

The length of a toothbrush is about 7....

• inches

• feet

• centimeters

• meters

The length of a loaf of bread is about 12........

• inches

• feet

• centimeters

• meters

The depth of a swimming pool is about 10........

• inches

• feet

• centimeters

• meters

Using estimation, 36 x 69 is closest to...

• 1800

• 2800

• 2400

• 1200

Tags

CCSS.3.NBT.A.1

CCSS.3.OA.D.8

Cindy earned $27 a week at her part time job. Which is the best estimate of how much Cindy earned in one year? Remember there are 52 weeks in a year.

• $1400
• $1500
• $1300
• $2000

Tags

CCSS.3.OA.A.3

CCSS.3.OA.C.7

CCSS.3.OA.D.8