Numeracy+Quiz

=**Grade Seven Questions**=

1. Determine whether or not each number is a common factor of 144 and 240.

Use different methods, and show your work.

a) 2 b) 3 c) 10 d) 48 e) 120

2. Express each prize as a power.

(Assume that the exact amount won each day is multiplied by the same number to get the winnings the next day.)

a) If you win $5 on May 1, $25 on May 2, and $125 on May 3, how much would you win on May 11?

b) If you win $10 on March 1, $100 on March 2, and $1000 on March 3, how much would you win on March 9?

c) If you win $4 on March 1, $16 on March 2, and $64 on March 3, how much would you win on March 9?

d) If you win $7 on March 1, $49 on March 2, and $343 on March 3, how much would you win on March 8?

3. The preferred overall competition area in judo, including the mats, is a square with an area of 256 sq m.

a) How do you know that the length and width of the competition area are between 10m and 20m?

b) What are the possible last digits of the dimensions if the side lengths are whole numbers?

c) Use your answers from a and b to predict the dimensions.

d) Check your prediction using a calculator.

4. Follow the order of operations to solve. Show all of your work.

a) 3 3 x 5 + 10 x 3 (10 cubed or 10 to the power of 3)

b) 2 10 + (3 - 1) / 2 - 4

c) 3 2 4 + 3 x 6 x (4 + 3 )