2.5 Estimate Sums

Match the following

• numbers being added

• round

• a number close to an exact value

• expanded form

• find the nearest value of a number based of a given place value

• estimate

• a number represented as the sum of the value of each digit

• addends

• result of addition

• sum

Estimate the sum by rounding each addend to its greatest place value.

734 + 76 =

Estimate the sum by rounding each addend to its greatest place value.

273 + 546 =

Estimate the sum by rounding each addend to its greatest place value.

217 + 686 =

Estimate the sum by rounding each addend to its greatest place value.

457 + 74 =

Estimate the sum by rounding each addend to the nearest hundred.

457 + 74 =

Estimate the sum by rounding each addend to the nearest hundred.

347 + 435 =

Estimate the sum by rounding each addend to the nearest ten.

234 + 345 =

Estimate the sum by rounding each addend to the nearest ten.

478 + 237 =

A family of four went to dinner. Two adult meals cost $14 each and the two child meals cost $6 each. How much did the family's food cost altogether?