Level 3
Using dots to form a series of inverted T-shaped patterns, the first three patterns are as shown. Find the number of dots needed to form the following patterns.
Pattern 4
Pattern 50
Pattern 150
Level 3
Using dots to form a series of inverted T-shaped patterns, the first three patterns are as shown. Find the number of dots needed to form the following patterns.
Level 2
Benny swam for 3 days. On each day, he would do 2 more laps than the previous day. He did y number of laps on the first day. What was the total number of laps he did for the 3 days? Give your answer in terms of y.
Level 3
The figures shows sequence of patterns of an arrangement of dots. '1st column' indicates the number of dots in the first column and the 'Total' indicates the number of dots in each pattern.
Find the number of dots in Figure 9.
Find the number of dots in Figure 20.
If the first column of a figure is made up of 21 dots, find the number of dots that make up the figure.
Level 3
The figures shows sequence of patterns of an arrangement of dots. '1st column' indicates the number of dots in the first column and the 'Total' indicates the number of dots in each pattern.
Find the number of dots in Figure 9.
Find the number of dots in Figure 20.
If the first column of a figure is made up of 21 dots, find the number of dots that make up the figure.