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Basic Operations Practice Questions

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1. Add 0.98 + 45.102 + 32.3333 + 31 + 0.00009

  1. 368.573
  2. 210.536299
  3. 109.41539
  4. 99.9975
  5. 80.8769543

2. Find 0.12 ÷ 1

  1. 12
  2. 1.2
  3. .12
  4. .012
  5. .0012

3. (9 ÷ 3) x (8 ÷ 4) =

  1. 1
  2. 6
  3. 72
  4. 576
  5. 752

4. 6 x 0 x 5

  1. 30
  2. 11
  3. 25
  4. 0
  5. 27

5. 7.95 ÷ 1.5

  1. 2.4
  2. 5.3
  3. 6.2
  4. 7.3
  5. 7.5

6. -32 + 7 equals:

  1. -25
  2. 25
  3. -26
  4. 26
  5. 27

7. -37 + -47 equals:

  1. 64
  2. -84
  3. 65
  4. -75
  5. -66

8. 41% equals:

  1. 4.1
  2. .41
  3. .041
  4. .0041
  5. .00415

Answers & Explanations

1. C: Aligning the decimals at the decimal point and adhering to the same integer addition computation properties, the sum is equal to 109.41539.

2. C: Any number divided by 1 is equal to itself, thus 0.12 x 1 = 0.12.

3. B: By first performing the computations within the parentheses, the expression may be rewritten as 3 x 2, which equals 6.

4. D: The product is 0, since the product of any number, or numbers, and 0, equals 0.

5. B: The division may be performed by first dividing 1.5 into 7.9 and then dividing 1.5 into 0.45. Doing so gives a quotient of 5.3

6. A: Addition of 7 to the integer, -32, shows a movement of 7 units to the right, giving a sum of -25.

7. B: The sum of the two negative integers will be negative. Starting at -37 on a number line and moving 47 units to the left, gives a sum of -84.

8. B: The percentage, 41%, may be converted to a decimal by moving the decimal point two places to the left. In other words, 41 is divided by 100 (or multiplied by 1/100), since one percent represents one-hundredth.

Additional Basic Operations Practice

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Last Updated: 04/08/2014

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