Multiplication Estimation

Front

What is multiplication estimation?

Back

Multiplication estimation is the process of finding an approximate value of a multiplication problem rather than an exact answer, often by rounding numbers to make calculations easier.

Front

How do you estimate the difference between two fractions?

Back

To estimate the difference between two fractions, replace each fraction with 0, 1/2, or 1 based on its value, then perform the subtraction.

Front

What is the estimated difference of 24/25 - 5/12?

Back

The estimated difference is 1/2.

Front

How do you estimate a percentage of a number?

Back

To estimate a percentage of a number, convert the percentage to a fraction or decimal and multiply it by the number, rounding as necessary.

Front

What is 72% of 238 estimated to be?

Back

72% of 238 is estimated to be 168.

Front

How do you estimate the sum of two fractions?

Back

To estimate the sum of two fractions, replace each fraction with 0, 1/2, or 1 based on its value, then perform the addition.

Front

What is the estimated sum of 3/25 + 1/18?

Back

The estimated sum is 0.

Front

How do you estimate the square root of a number?

Back

To estimate the square root of a number, find the nearest perfect squares and determine a value between them.

Front

What is the estimated square root of 46?

Back

The estimated square root of 46 is approximately 6.8.

Front

How do you break down a large multiplication problem into simpler parts?

Back

Break down a large multiplication problem by using the distributive property, multiplying each part separately, and then adding the results.