This task is about completing a spatial pattern and writing a rule.
| a) |
Draw in the next two crosses in this pattern. |
 Cross 1 Cross 2 |
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b) |
Complete the table to show the total number of squares in each cross. |
| Cross 1 | Cross 2 | Cross 3 | Cross 4 | |
| Number of squares across | 3 | 5 | 7 | 9 |
| Total number of squares | 5 | 9 |
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c) |
Complete the following sentence to show the rule for finding out how many squares make up different sized crosses.
"Multiply the number of squares across by ____ and then subtract _____".
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d) |
Use this rule to find out the total number of squares in a cross with 101 squares across.
__________ squares
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