Amaline Yang
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Another one. Pls help!

Replies 3
Kai Meng

Analyze it based on odd and even stages. When the Stage # is odd: White: #^2 Black: (#-1)^2 When the Stage # is even: White: (#-1)^2 Black: #^2 At Stage 10, 10 is even, so White: (10-1)^2 = 9^2 = 81. At Stage 99, 99 is odd, White: 99^2 = 9801 Black: (99-1)^2 = 9604 Total = 19405.

5 years ago
Mayuree Thongpan

5 years ago
Amaline Yang

Thanks

5 years ago

Amaline Yang
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Help needed! Hate pattern question

Replies 10
Amaline Yang

Thanks

5 years ago
Amaline Yang

How to solve question 3?

5 years ago
Chatawut Che

N(N+1)=1892 = 43×44 43 is the answer

5 years ago
Amaline Yang

5 years ago
Amaline Yang

I am stuck here. How to find n?

5 years ago
Chatawut Che

N(N+1) is the product of two consecutive numbers. Let s try 40x40 =1600 45×45=2025 so N shall be in range between 40 and 44. In this range there are only 41x42 and 43x44 end with 2.

5 years ago
Thit Mon Mon Win

Base* high+1 (base-1=high) 2*1+1=3 3*2+1=7

5 years ago
Adrian Ng

5 years ago
Thit Mon Mon Win

Pattern 1, base=1+pattern no.

5 years ago
Vera Koh

Amaline, try square rooting 1892.. that will give u a good estimation of "n".. after u get the square root, work with the numbers close to it. much faster than guessing, I feel. :)

5 years ago

Clare Means Bright
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Fractions

Can anyone help with this question?

Replies 0

Ramya Gopalan
Asked 9 years ago

SG chevron_right Primary 3 chevron_right Number and Algebra

Please help in solving the problem with model method.

Replies 0

Mavis Low
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Oops! And a last one.

Replies 0

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