Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 0.3, 0.4)
- 85¢ + _____¢ = $1
- $0.65 + $_____ = $1
- 20¢ + $_____ = $1
- $0.15 + $_____ = $1
(a)
$1 = 100¢
85¢ + _____¢ = $1
85¢ + _____¢ = 100¢
100¢ - 85¢ = 15¢
(b)
$0.65 + $_____ = $1
$1 - $0.65 = $0.35
(c)
$1 = 100¢
20¢ + $_____ = $1
$0.20 + $_____ = $1
$1 - $0.20 = $0.80
(d)
$0.15 + $_____ = $1
$1 - $0.15 = $0.85
Answer(s): 15, 0.35, 0.80, 0.85