Calculator Usage
46 + 33 - (-7)2
4074
When Steve woke up. His temperature was 102º F. Two hours later it was 3º lower. What was his temperature then?
99
4.1 + 7.2 – 3.3
8
Round off 0.41111 to 1 significant figure
0
51 + 62 + 73 - 84
-3712
The cost of 5 pens is $140.50. What is the cost of 1 pen?
28.1
2.57 + 7.83 – 9.12
1.28
Round off 1.7985 to 2 decimals places
1.80
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11.6 which is 12
What is the balance as a result of having a credit of $84 and a debit of $29?
55
(-2.2022) ÷ ( 1.1)
-2.002
Round of 2.3334 to 3 significant figures
2.33
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91.314 which is 91.31
The government’s budget is $12,000,000. The government actually spends $15,500,000. Does the government have a surplus or deficit? Explain your answer.
-3.5 million
Deficit as spent more than allowed
1.4 ÷ 0.2 × (-0.3)
-2.1
Round off 7.34 to 1 and 2 significant figures
7
7.3
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0.022 which is 0.02
A scuba diver swam 96 feet beneath the surface of the lake. He then climbs up 49 feet. What is his depth now?
-47 still beneath
1.1 × 50 ÷ (-0.75)
-73.33
Round 0.002 off to 1, 2 and 3 significant figures
0.002
0.0020
0.00200