﻿ MATH TEST

MATH TEST 1

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Take this test without using a calculator.

Addition

1. 7 + 12 =            2.  4.8 + 93 =          3.  4638 + 67.42 =      4.  75 + (-26)  =     5.  -53 + 45 =

6.   -4 + (-8)  =      7.  -23 + .47 =         8.   1/2  + 1/3 =          9.   2/3 + 7/6 =      10.  3  2/5  +  4  5/7 =

11.  1/2 + (-1/3) =       12.  - 2/5 + (- 3/7) =       13.  - 3/2 + 1/5 =        14.  4  3/5  +  (-6  7/8) =

Subtraction

1.  7 - 4 =        2.  9436 - 7568 =       3.  - 7 - 6 =      4.  -7 - ( -6) =      5.  789 - ( - 643)

6.  1/2  - 1/3 =          7.   2/3 - 7/6 =      8.  3  2/5  - 4  5/7 =        9. 1/2 - (-1/3) =       10.  - 2/5 - (- 3/7) =

11.  - 3/2 - 1/5 =        12.  4  3/5  -  (-6  7/8) =    13.  7 -  8 =           14.  .7 - (-.8) =        15.  -.7 - .8 =

16.  -.7 - (-.8) =       17.  -8.97 - .23 =

Multiplication

1.  7 x 8 =           2. 7 x (-8) =        3.  -7 x 8 =    4.  -7 x (-8) =       5.  -897 x 23 =

6.  .7 x 8 =           7.  7 x (-.8) =        8.  -.7 x .8 =    9.  -.7 x (-.8) =       10.  -8.97 x .23 =

11.  1/2  x 1/3 =       12.   2/3 x 7/6 =      13.  3  2/5  x  4  5/7 =        14. 1/2 x (-1/3) =

15.  - 2/5 x (- 3/7) =    16.  - 3/2 x 1/5 =        17.  4  3/5  x  (-6  7/8) =

Division

1  8 ÷ 4 =     2.  -8 ÷ 4 =        3.  8 ÷ (-4) =     4.  -8 ÷ (-4) =    5.  765 ÷ 30 =

6.  .7 ÷ 8 =           7.  7 ÷ (-.8) =        8.  -.7 ÷ .8 =    9.  -.7 ÷  (-.8) =       10.  -8.97 ÷  .23 =

11.  1/2  ÷ 1/3 =       12.   2/3 ÷ 7/6 =      13.  3  2/5  ÷  4  5/7 =        14. 1/2 ÷ (-1/3) =

15.  - 2/5  ÷ (- 3/7) =    16.  - 3/2  ÷ 1/5 =        17.  4  3/5  ÷  (-6  7/8) =

Percentages

Find what t =

1.   40% of 80 =  t     2.  t% of 80 =  20        3.  30% of t = 20   (remember of means multiply)

4.  A television is on sale for \$130 which is 20% less than the original price. What is the original price?

5. Estimates are that the average Chinese worker makes \$.81 per hour. This is 2.7% of an American worker's average hourly wage. How much does the average American make per hour?

6. Wages for Chinese migrant workers rose by 1/6 last year to 1,348 yuan (\$197) a month. How much did they make per month the year before that?

Exponents

1. 72 =      2. 34 =    3.  Write using exponents  5 x 5 x 5 x 5 x 5 x 5 =     4. Write 36 as a number with 2 as its exponent. The number when multiplied by itself must equal 36.

Scientific notation

1. Convert 3,400,000 to scientific notation   2. Convert .000000075 to scientific notation.  3. Change this number back from scientific notation   7.3 x 107 =   4. Change this number back from scientific notation   7.3 x 10- 7  =

Answers