Grade 7 Math, Sub part 1

Subtraction

100

4 2/3 -(-1 4/5)

6 7/15

200

While on a camping trip, Calvin was monitoring the temp. 

- In the afternoon, the temp was -4 degrees Celsius.

- As evening progressed, the temp. dropped 7 degrees Celsius.

-By mid-morning the next day , the temp. risen by 3 degrees Celsius.

What was the temp., in degrees Celsius, after these changes?

-8

Addition

100

Solve for m:

-2/9m+12=-8

90

Equivalent

100

Select all the expressions that are equivalent to

-2(5x-1)+7(5x-1)-3(-5x+1)

M. -10x-1+35x-1+15x+1

P. -10x+2+35-7-15x-3

R.(5x-1)(-2+7-3)

S.(5x-1)(-2+7+3)

T. 40x-8

V. 10x+2

S.

T.

Match.

100

Look at the rational numbers on the table.

Match each fraction in the first column with its equivalent decimal on the top row.

____________lRepeatingl_______________

          l 0.375. l 0.375l 0.45 l .45

____________________________________

5/11_l_______l______l_____l____________

3/8__l_______l______l_____l____________

5/11=.45 repeating.

3/8= .375

Fractions/Proportions.

100

At a local gym, a random sample of 75 students took a survey about their favorite type of exercise.

Type   l   Number of Members.

Bicycling l      18

Exercise Classes l   22

Running on a tread mill l   15

Weight lifting l   20

There are 350 total gym members. Based on the results of the survey, what is the most reasonable estimate for the number of gym members who prefer running on a tread mill?

A. 15

B. 70

C.85

D. 93

B. 70