Lekha's answer to Bree's Primary 4 Maths Singapore question.
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Find the pattern.
Figure 1 --> 1×3+1=4
Figure 2 --> 2×3+1=7
Figure 3 --> 3×3+1=10
(a)
Figure 7 --> 7×3+1=22
(b)
Figure ? --> ?×3+1=100
100‐1=99
99 ÷ 3 = 33
Therefore, figure 33 has 100 stickers.
Figure 1 --> 1×3+1=4
Figure 2 --> 2×3+1=7
Figure 3 --> 3×3+1=10
(a)
Figure 7 --> 7×3+1=22
(b)
Figure ? --> ?×3+1=100
100‐1=99
99 ÷ 3 = 33
Therefore, figure 33 has 100 stickers.
Date Posted:
4 years ago
Thank you!
Why x3?
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