1. Use a calculator to do the following calculations:
a. 55 × 39 b. 57 + 33 × 9 c. 50 ÷ 5 × 10 d. 5795 ÷ 5 e. 19 + 17.5 − 5.335 f. 33 × 7.5 ÷ 5 g. 1.3975 ÷ 0.5 + 3 × 5 h. 33 × (55 + 33) i. (33 + 57) × 91 j. 5.3 + (3.5 − 3.3) × 3.5 k. 352 + 332 l. 33 − 5.33 m. 3.55 n. 5.52 − 3.52 o. 35.53 + 59.1 × 75.9 p. 5.54 q. 13.75 ÷ 0.55 r. -8.6 + -10.4 s. 5⁄8 + 1⁄12 t. 13⁄5 × 31⁄4 u. v. (3.8 × 102) + (4.5 × 103) w. (98 × 103) × (34 × 105) x. -4.6 + - 2.4 − - 7.6
2. The following table shows the heights of the 10 highest Australian mountains.
|
Name of mountain
|
Height (metres)
|
|
Bogong
|
1986
|
|
Gungartan
|
2060
|
|
Feathertop
|
1922
|
|
Perisher
|
2040
|
|
Paddy Rushs Bogong
|
1920
|
|
Kosciuszko
|
2228
|
|
Twynham
|
2180
|
|
Townsend
|
2209
|
|
Tate
|
2040
|
|
Jagungal
|
2040
|
a. Enter the data into the first two columns of a spreadsheet.
b. Make the mountain names bold and red.
c. Centre the heights.
d. Use a formula to find the average of the heights.
e. Sort the mountain names into alphabetical order.
f. Sort the heights into order from largest to smallest.
3. The following data shows the money earned by fruit pickers in a week by four workers at an orchard.
|
Silvio
|
Alisi
|
Tumua
|
Jenny
|
 |
|
|
Monday |
234
|
342
|
423
|
265
|
|
| Tuesday |
334
|
472
|
192
|
160
|
|
| Wednesday |
276
|
339
|
401
|
193
|
|
| Thursday |
334
|
459
|
410
|
329
|
|
| Friday |
203
|
295
|
184
|
392
|
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 fruit picker.
c. Use formulae to find the total amount earned each day.
d. Find the total amount earned by all of the fruit pickers.
e. If the workers are paid $11 for each hour worked, use a spreadsheet cell to calculate the total number of hours worked.
4. The following table shows the heights of the 10 highest New Zealand mountains.
|
Name of mountain
|
Height (metres)
|
 |
|
Silberhorn
|
3300
|
|
|
Cook
|
3754
|
|
|
Hicks
|
3198
|
|
|
Lendenfeldt
|
3194
|
|
|
Torres
|
3163
|
|
|
Tasman
|
3497
|
|
|
Teichelmann
|
3160
|
|
|
Sefton
|
3157
|
|
|
Malte Brun
|
3155
|
|
|
Dampier
|
3440
|
a. Enter the data into the first two columns of a spreadsheet.
b. Make the mountain names bold and red.
c. Centre the heights.
d. Use a formula to find the average of the heights.
e. Sort the mountain names into alphabetical order.
f. Sort the heights into order from largest to smallest.
