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?
=
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?
=
What is the difference of 0.946 and 0.574 rounded to the nearest tenth?
=
What is the sum of 8.647 and 3.384 rounded to the nearest hundredth?
=
Estimate the sum or difference to the nearest tenth.
16.72 + 5.37 → + =
Estimate the sum or difference to the nearest tenth.
8.26 – 3.76 → – =
Estimate the sum or difference to the nearest tenth.
5.647 + 7.26 →
Estimate the sum or difference to the nearest tenth.
8.49 – 3.72 →
Estimate the sum or difference to the nearest hundredth.
2.738 + 1.973 → + =
Estimate the sum or difference to the nearest hundredth.
1.386 – 0.943 → – =
Estimate the sum or difference to the nearest hundredth.
1.684 + 2.738 →
Estimate the sum or difference to the nearest hundredth.
4.238 – 1.972 →
Estimate the sum of 0.897 and 4.432 to the nearest tenth.
Estimate the difference of 7.455 and 2.324 to the nearest hundredth.
Estimate the sum of $3.48 and $6.25 to the nearest tenth (10 cents).
Approximation the difference between $8.62 and $3.99 to the nearest dollar?
Match each estimated sum or difference to the matching estimation to the tenths place.
6.72 + 2.67
14.65 – 5.18
4.72 + 4.88
9.6
9.5
9.4
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