Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 0.3, 0.4)
- 90¢ + _____¢ = $1
- $0.15 + $_____ = $1
- 50¢ + $_____ = $1
- $0.75 + $_____ = $1
(a)
$1 = 100¢
90¢ + _____¢ = $1
90¢ + _____¢ = 100¢
100¢ - 90¢ = 10¢
(b)
$0.15 + $_____ = $1
$1 - $0.15 = $0.85
(c)
$1 = 100¢
50¢ + $_____ = $1
$0.50 + $_____ = $1
$1 - $0.50 = $0.50
(d)
$0.75 + $_____ = $1
$1 - $0.75 = $0.25
Answer(s): 10, 0.85, 0.50, 0.25