Читать книгу Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online) - Mark Zegarelli - Страница 80

1 . Performing the subtraction, you have , and 17 is less than 27.

2 64. The exponent says to multiply the 4 three times: .

3 5. Use division, the inverse of multiplication, and write . This equals 5.

4 940. Use the associative property to regroup: .

5 376. Rewrite the number 47 as a sum: . Distribute and find the sum of the products: .

6 . Determine the inverse equation to by starting with the 6 and adding 4.

7 . Because , you want .

8 7. Determine that so .

9 5. Change the division to multiplication and write .

10 . Start with the 3 and change the operation to multiplication: .

11 8. First, perform the subtraction in the parentheses. Then divide: .

12 <.. Because , you need the less-than sign.

13 83. Use the associative property to regroup the factors: .

14 >.. Because , you need the greater-than sign.

15 10,000,000,000,000. There are 13 zeros in this power.

16 140. Perform the addition before multiplying: .

17 . They are the same: and .