Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 0.3, 0.4)
- 15¢ + _____¢ = $1
- $0.55 + $_____ = $1
- 10¢ + $_____ = $1
- $0.25 + $_____ = $1
(a)
$1 = 100¢
15¢ + _____¢ = $1
15¢ + _____¢ = 100¢
100¢ - 15¢ = 85¢
(b)
$0.55 + $_____ = $1
$1 - $0.55 = $0.45
(c)
$1 = 100¢
10¢ + $_____ = $1
$0.10 + $_____ = $1
$1 - $0.10 = $0.90
(d)
$0.25 + $_____ = $1
$1 - $0.25 = $0.75
Answer(s): 85, 0.45, 0.90, 0.75