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100

4.5 - 6.7

-2.2

100

4.5 * (-6.7)

-30.15

100

1/4 -4/5

-11/20

100

-1/2 *(-4/5)

2/5

100

What is the first step when adding fractions?

Find the Least Common Denominator.

200

-7.8-9.1

-16.9

200

-12.3*(-3)

36.9

200
-1/5 +(3/8)

7/40

200

-8/9 * 6/7

-16/21

200

What is the first step when dividing fractions?

Multiply by the reciprocal.

300

-14.5 +(-2.03)

-16.53

300

-8.71*4.1

-35.711

300

-8/9-(-3/4)

-5/36

300

-4/5 / 8/15

-3/2 or -1 1/2

300
What is Ms. Kelley's middle name?

Amelia

400

-8.9+3

-5.9

400

6.7*(-4.55)

-30.485

400

4 2/3 - 6 1/3

-5/3 or -1 2/3

400

-1 2/3 * 4 8/9

-220/27 or -8 4/27

400

How many siblings does Ms. Kelley have?

2 sisters

500

-5.6-(-17.61)

12.01

500

-148.4 / 5.3

-28

500

-6 4/5 - 3 1/2

-103/10 or -10 3/10

500

-5 1/4 / (-3 3/16)

28/17 or 1 11/17
500

About how many building windows are in Manhattan?

10.7 million