Multiplying two/three digits by one digit and Estimating

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What does it mean to estimate in multiplication?

Back

Estimating in multiplication means finding a number that is close to the exact answer, often by rounding the numbers to make the calculation easier.

Front

Estimate 56 x 4 by rounding.

Back

Round 56 to 60. Then, 60 x 4 = 240. So, the estimate is 240.

Front

Estimate 272 x 5 by rounding.

Back

Round 272 to 300. Then, 300 x 5 = 1500. So, the estimate is 1500.

Front

What is the product of 8 x 95?

Back

The product of 8 x 95 is 760.

Front

Estimate 62 x 3 by rounding.

Back

Round 62 to 60. Then, 60 x 3 = 180. So, the estimate is 180.

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler but still close to the original value. For example, rounding 106 to the nearest ten gives 110.

Front

What is the greatest value when rounding 106?

Back

The greatest value when rounding 106 is 110.

Front

How do you multiply a two-digit number by a one-digit number?

Back

Multiply the one-digit number by each digit of the two-digit number, starting from the right, and then add the results.

Front

What is the product of 7 x 12?

Back

The product of 7 x 12 is 84.