1. Use a calculator to do the following calculations (turn your calculator upside down and you will see a "word"):
a. 97 − 63
b. 46708 − 45789
c. 140 ÷ 4 × 100 − 455
d. 64.9656 ÷ 84
e. 241670 ÷ 65
f. 592 + 4237/19g.
2. Use a calculator to do the following calculations involving brackets and exponents:
a. 42 x (56 + 47)
b. (23 + 56) x 91
c. 4.3 + (3.5 − 2.3) x 2.4
d. 232 + 312
e. 23 − 3.42
f. 2.63
g. 5.43 − 3.63
3. Use a calculator to calculate the following and round your answers to the nearest whole number.
a. 44.55 + 98.1 x 24.6
b. 5.62
c. 24.65 ÷ 0.352
d. 4.53
e. 2.63 + (9.67 − 3.97)
f. (5.6 + 9.7) − 5.84
g. 5.452 − 3.592
4. The following table shows the distances from Christchurch to eight New Zealand South Island towns and cities.
|
Name of city or town
|
Distance from Christchurch (km)
|
|
|
Invercargill
|
579
|
 |
|
Dunedin
|
362
|
|
|
Westport
|
333
|
|
|
Nelson
|
424
|
|
|
Greymouth
|
258
|
|
|
Oamaru
|
247
|
|
|
Queenstown
|
486
|
|
|
Timaru
|
163
|
|
a. Enter the data into the first two columns of a spreadsheet.
b. Make the names of the cities bold.
c. Centre the distances.
d. Use a formula to add all of the distances together.
e. Sort the distances into order from smallest to largest.
5. The following data shows the amount earned in dollars($) in a week by four workers at a supermarket.
|
Ralph
|
Susan
|
Sam
|
Jan
|
 |
|
|
Monday |
79
|
89
|
82
|
65
|
|
| Tuesday |
58
|
85
|
95
|
54
|
|
| Wednesday |
90
|
84
|
92
|
56
|
|
| Thursday |
83
|
78
|
86
|
54
|
|
| Friday |
82
|
89
|
102
|
49
|
a. Put this information into the first 5 columns and first 6 rows of a spreadsheet.
b. Use formulae to find the total amount earned by each employee.
c. Use formulae to find the total amount earned each day.
d. Find the total amount earned by all of the workers.
e. If the workers are paid an avarage of $9.50 for each hour worked, use a spreadsheet cell to calculate the total hours worked.
