(math) Cross-system Conversions Flashcards
1 inch > cm
2.54 cm
1 foot > m
0.3048 m
(1 in = 2.54 cm, 1 foot = 12 in, 100 cm = 1m,
2.54 * 12 / 100 = 0.3048)
1 mile > km
1.60934 km
1 acre > hectare
0.404686 hectare
fluid oz, cup, pint, quart, gallon
8 fl. oz = 1 c, 2 c = 1 pt,
2 pt = 1 qt, 4 qt = 1 gal
(must be ‘fl. oz’ to not confuse with ‘oz’ of weight)
1 fluid oz > mL
29.5735 mL
ounce, pound, hundredweight, ton
(ton = short ton,
tonne = long ton = metric ton)
16 oz = 1 lb,
100 lb = 1 cwt,
20 cwt = 1ton
1 ounce > g
28.3495 g
celsius n fahrenheit
if F, F side has 5 up with tip turning right.
F has bar in middle so (-) also with brackets.
F = 9/5 C + 32
C = 5/9 (F - 32)
general idea
memorized relations:
in > cm, fl.oz > mL, oz > g, acre > hactare
if give yard n ask meter,
recall these:
in to yard & cm to m, bcuz u only know in > cm.
12 in = 1 ft, 3 ft = 1 yd so … 36 in = 1 yd
100 cm = 1 m
now calculation:
in (given) * 36 / 100 = Result meter
- 36 is 12in and 3ft to make yd
- 100 is 100cm to make 1m
there is nothing below in, fl.oz or oz; u won’t need going down formula.