Question

multiplication estimating products 1000multiple 100​

Answer 1

Step-by-step explanation:

To multiply a whole number by 100, simply write two 0 digits on the end of it. To multiply a number by a multiple of 100, multiply the number by the digits in front of the two 0 digits and then write two 0 digits on the end. 400 is a multiple of 100. 400 = 4 × 100.

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Answer 2

In order to estimate products, we round the given factors to the required place value. Estimating products help us to check the reasonableness of an answer.

To estimate the product, we first round off the multiplier and the multiplicand to the nearest tens, hundreds, or thousands and then multiply the rounded numbers.

For example -

product of 34 and 33

34»30

33»30

30×30= 900