Answered

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show two ways to decompose the number 749?

Sagot :

Two ways to decompose this number is:

749 = 700+40+9; and
749 = 100+649.

Explanation:

One method to decompose a number is to break it up by place value, into hundreds, tens and ones.

In this number, 7 is in the hundreds place; this makes 7(100) = 700.
4 is in the tens place; 4(10) = 40.
9 is in the ones place; 9(1) = 9.

This makes 749 = 700+40+9.

Another method to decompose a number is to break it into pieces that can be added together.  

For this number, I chose to start with 100.  This means the second addend would be 749-100 = 649; this gives us

749 = 100+649.
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