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Friday 14 June 2013

Algebriac Activities. Wk3





Triangles, Squares & Pentagons:
1) Continue this pattern:
15, 18, 21, _24_, _27_, _30_, _33__
3) If the rule is ‘×7, subtract 3’ complete this pattern:
6, _39_, _309_, _2469_, _19773__, _158181___
5) Use the rule in the box to calculate
the cost of buying 2, 4, 8 and 16 CDs.
1 CD = $19.99
Cost of 2 CDs =$39.99
Cost of 4 CDs =$79.99
Cost of 8 CDs =$159.99
Cost of 16 CDs =$319.99
6) If Anna spent $200 how many CDs were bought?10
7) Use the order of operations to solve this equation:  235 – (a) = 176
What is the value of a?59
9) Fill in the missing numbers  255, 263, _271__,  _279____, _287______, _295______ state the rule for the pattern.
10) Timothy swam many laps every Friday morning.
The distances he swam in his first 4 times were:
100m, 200m, 450m and 700m, 950 m, 1,200m
If he continued this pattern, how long would his next 2 swims be?

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