Problems And Solutions SEAMO PAPER A 2021

21. Find the sum of the 9th row in the number pyramid below.

1 + 2 + 1 = 4
1 + 2 + 3 + 2 + 1 = 9
1 + 2 + 3 + 4 + 3 + 2 + 1 = 16
1 + 2 + 3 + 4 + 5 + 4 + 3 + 2 + 1 = 25
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22. Find the mass of one apple in grams.

23. How many 4-digit numbers can be formed using the digits 0, 1, 2 and 3 without repeating any of the digits?

24. How many dots are there in the 10th pattern?

25. In Mathematics,

\(𝑎^2 = 𝑎 × 𝑎\)
\(𝑎^3 = 𝑎 × 𝑎 × 𝑎\)
\(𝑎^4 = 𝑎 × 𝑎 × 𝑎 × 𝑎\)
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Find the difference between \(2^5\) and \(3^3\).

Baca juga

SEAMO PAPER A 2019

SEAMO PAPER A 2020