Читать книгу Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online) - Mark Zegarelli - Страница 50

1

(a) 80.

(b) 220.

(c) 1,890.

(d) 6,500.

2

(a) 300.

(b) 2,300.

(c) 8,000.

(d) 40,000.

3

(a) 7,000.

(b) 9,000.

(c) 23,000.

(d) 800,000.

4

(a) 5,000,000.

(b) 11,000,000.

(c) 99,000,000.

(d) 5,556,000,000.

5 280.. The answer before rounding? It’s 285!

6 5,500.. The answer before rounding is 5,578.

7 1,400.. The answer before rounding: 1,507.

8 7,000.. The answer before rounding? It’s 6,836!

In the section that follows, you’ll find a quiz that tests your rounding and estimating skills from this chapter.