Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
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Exercise 32 Page 365

Round the given decimal number to the nearest 10 000 000.

3* 10^7

Practice makes perfect
We want to round the given decimal number and write the result as the product of a single digit and a power of 10. 29 197 543Let's start by rounding the given number to the nearest 10 000 000. Since the digit in the millions place is greater than 5, we will modify the digit in the ten-millions place. 2 9 197 543 ≈ 30 000 000 Finally, we will write the above number as the product of a single digit and a power of 10. To do so, let's first factor out 3.
30 000 000
3* 10 000 000
3* 10^7