Estimating Decimals - Sums & Differences - NICHOLAS GLAESER | Biblioteka

4

When estimating decimals, round each decimal first then add or subtract.

A paperclip has a mass of 4.237 grams. A pencil has a mass of 35.82 grams. About how many more grams is the pencil than the paperclip to the nearest tenth of a gram?

5.3.A

6

Sophie went to the grocery store and placed three items in her cart:

- A pack of paper plates for $4.73

- A 2-liter bottle of Cola for $3.35

- A pack of Styrofoam cups for $1.99

To the nearest dollar, about how much money do the three items in Sophie’s cart cost altogether?

5.3.A

4

What is the difference of 0.946 and 0.574 rounded to the nearest tenth?

5.3.A

4

What is the sum of 8.647 and 3.384 rounded to the nearest hundredth?

5.3.A

3

Estimate the sum or difference to the nearest tenth.

16.72 + 5.37 → = –

5.3.A

3

Estimate the sum or difference to the nearest tenth.

5.647 + 7.26 → + =

5.3.A

3

Estimate the sum or difference to the nearest tenth.

8.49 – 3.72 → – =

5.3.A

3

Estimate the sum or difference to the nearest hundredth.

2.738 + 1.973 → = –

5.3.A

3

Estimate the sum or difference to the nearest hundredth.

1.684 + 2.738 → + =

5.3.A

3

Estimate the sum or difference to the nearest hundredth.

4.238 – 1.972 → – =

5.3.A

1

Estimate the sum of 0.897 and 4.432 to the nearest tenth.

5.3.A

1

Estimate the difference of 7.455 and 2.324 to the nearest hundredth.

5.3.A

1

Estimate the sum of $3.48 and $6.25 to the nearest tenth (10 cents).

5.3.A

1

Approximation the difference between $8.62 and $3.99 to the nearest dollar?

5.3.A

3

Match each estimated sum or difference to the matching estimation to the tenths place.

6.72 + 2.67
4.72 + 4.88
14.65 – 5.18

9.6
9.5
9.4

5.3.A

3

Match each estimated sum or difference to the matching estimation to the hundredths place.

1.682 + 3.778
12.846 – 7.374
6.943 – 1.486

5.46
5.48
5.45

5.3.A