Estimate sums and differences

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Estimate to the nearest ten.

652 - 176

(a)  

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CCSS.5.NBT.A.4

Estimate the sum.

2.7 + 3.8 =

• 7

• 20

• 5

• 10

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CCSS.5.NBT.B.7

CCSS.5.NBT.A.4

Round to the nearest WHOLE number to find the sum:

44.56 + 14.72

• 59.28

• 50

• 60

• 58

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.4

Multi-Step Maiko wrote two songs. The first song was 2.9 minutes long. Then he added 0.4 minute. The second song was 5.6 minutes long. Then he subtracted 1.1 minutes from it. Use benchmarks to estimate the length of each song.

• first song: 2.5 minutes, second song: 4 minutes

• first song: 3.5 minutes, second song: 4.5 minutes

• first song: 3.5 minutes, second song: 7 minutes

• first song: 2.5 minutes, second song: 5.5 minutes

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.4

CCSS.5.NBT.A.3

• 122 + 0.044 = 3,657

• 1 + 0.44 = 1.44

• 1.22 + 0.22 = 1.44

• Amurica

Tags

CCSS.5.NBT.B.7

Connect Geoff and Andrea want to combine their money to buy pizza. Geoff has $5.95. Andrea has $8.30. Estimate (round to the nearest dollar) how much money they each have.

• $6.00 + $8.25

• $5.75 + $8.00

• $6.00 + $8.50

• $5.00 + $8.00

Tags

CCSS.5.NBT.A.4

Round to the nearest WHOLE number to find the sum: 34.87 + 20.41

• 55

• 55.28

• 54

• 50

Tags

CCSS.5.NBT.B.7

CCSS.5.NBT.A.4

Which equation matches the model?

• 0.73 - 0.23 = 0.50
• 0.50 + 0.23 = 0.73
• 0.73 + 0.23 = 0.50
• 0.73 - 0.50 = 0.23

Tags

CCSS.5.NBT.B.7

Mr. Dixon bought a whiteboard that was on sale for $1,989.99. The regular price was $2,499.89. Select the true statement below.

• The sale price was about half the regular price.

• The regular price was about $1,000 more than the sale price.

• Mr. Dixon saved about $500.

• Mr. Dixon saved about $1,000.

Tags

CCSS.5.NBT.B.7