DARE TO THINK
EXERCISE I:
CALCULATOR PRACTICE.
I) Arithmetic (Standard Calculator):
34 + 45 * 23 – 65 = _____________________
560.90 + 234.76 * 9 / 3.333 + 78.60= _____________________
213 + 0.000025 – 54.70 – 45 / 2.50= _____________________
27.40 * 34 + 90 – 54.70 – 45.000 / 2= _____________________
12 * 3 * 3 + 3 + 3.33 * 2.333 / 1.1= _____________________
45.36 – 25.6666 – 45.78 * 1.15 + 2= _____________________
II) ALGEBRA (Scientific Calculator):
48 * 537.9 + 34.90 – 10.13 * 78 + 2 ^ 3= _____________________
45 * (537.9 + 34.90 – 10.13) * 78 + (2 ^ 3)= _____________________
123 + 56.80 * 34 – 23.900 * (35 + 22.5784)= _____________________
(123 + 56.80) * (34 – 23.900) * 35 + 22.5784= _____________________
571 – 321.52 + 8 ^ 2 – 120.170= _____________________
(571 – 321.52 + 8) ^ 2 – 120.170= _____________________
(571 – 321.52) + 8 ^ 2 – 120.170= _____________________
(571 – 321.52) + ( 8 ^ 2) – 120.170= _____________________
(12 * 2) ^ 3= _____________________
12 * 2 ^ 3= _____________________
III) CONVERSIONS: Use the correct calculator to solve the next math operations:
1 inch= 2.54 cm.
1 pound= 0.45 kg.
1 acre = 0.40 ha.
1 mile= 1.61 km.
1 gallon= 3.785 lt.
1 yard = 0.9144 m.
1ºC = 33.8°F
32 inches are: _____________________________ cm.
67 centimeters are: ___________________________ inches.
56.90 pounds are: _____________________________ kilograms.
78.300 kg. are: ______________________________ pounds.
2390 acres are: ______________________________ ha.
212 ha are: ____________________________ acres.
1001.90 miles are: ___________________________ kilometers.
365.60 km. are: _____________________________ miles.
300.70 gallons are: ___________________________ liters.
4500.8000 liters are: __________________________ gallons.
65.987 yards are: ____________________________ meters.
3490 meters are: _____________________________ yards.
2899ºC are: _______________________________ ºF
345ºF are: _________________________________ ºC
1001.0ºC are: _______________________________ ºF
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