estimating sums and differences with mixed numbers

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/3.

Front

How do you estimate the sum of mixed numbers?

Back

Round each mixed number to the nearest whole number and then add them.

Front

Estimate 8 2/9 - 3 6/7.

Back

4

Front

What is the purpose of estimating sums and differences?

Back

Estimating helps to quickly find an approximate answer without exact calculations.

Front

Estimate 1 3/4 + 1/10.

Back

2

Front

What are benchmark fractions?

Back

Benchmark fractions are common fractions like 0, 1/2, and 1 that help in estimating.

Front

Estimate 8 5/9 - 5 2/3.

Back

3

Front

How do you use benchmark fractions to estimate?

Back

Compare the fractions to benchmark fractions to see which they are closest to.

Front

Estimate 4/10 + 5/6.

Back

1 1/2

Front

What is the first step in estimating a difference with mixed numbers?

Back

Round the mixed numbers to the nearest whole numbers.