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  • Calculate −17½ + 12.25 − 3.
    −17.50 + 12.25 − 3 = −8.25
  • A diver swims down 11 meters. What integer shows how far and in which direction the diver must swim to return to the start?
    +11 — swim up 11 meters
  • Start at −3 on a number line. Move left 7 spaces. Write a subtraction equation.
    −3 − 7 = −10
  • Your score goes down 14 points to 68. Then it goes up 5 points. What was your score at the start? What is it now?
    At the start: 68 + 14 = 82; now: 68 + 5 = 73
  • You owe your friend $12. What integer shows this?
    −12
  • Write 2 3/10 as a decimal.
    2.3
  • Write 7/16 as a decimal. Show your work.
    7 ÷ 16 = 0.4375
  • What do sum and difference mean in math?
    Sum: the answer when you add; difference: the answer when you subtract
  • Is 6 4/11 greater or less than 6.35?
    6 4/11 = 6.363636… which is greater than 6.35
  • How are terminating and repeating decimals different? Give one example of each.
    A terminating decimal ends: 0.25; a repeating decimal repeats forever: 0.333…
  • Calculate −6 + (−3).
    −9
  • Calculate 18.75 − 6½ + 9.
    18.75 − 6.50 + 9 = 21.25
  • Calculate 9 + (−4).
    5
  • Calculate −5 − (−9).
    −5 + 9 = 4
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