AMSO - Grade 7/8 - 1st round

If it is 5ºC outside and the temperature will drop 17ºC in the next six hours, how cold will it get?

• 12º C

• 22º C

• -12º C

• -22º C

A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is 200 feet below sea level. How deep was the diver 10 minutes ago?

• 225 feet below sea level

• 225 feet above sea level

• 450 feet below sea level

• 450 feet above sea level

David has 75 trees to plant. He wants to put the same number of trees in each row with no extra trees. How many rows could David make?

• 17

• 18

• 21

• 25

A square coffee table has an area of 196 square inches. What is the length of one side of the coffee table?

• 7

• 14

• 28

• 49

According to the pattern below, find the next term in the sequence.

1, 2, 4, 5, 11, 16, 22, …

• 24

• 38

• 23

• 29

1)

What is the output?

• 4

• 6

• 8

• 9

Find the rule of the function.

• +3

• x 4

• x 3 + 1

• x 2 + 2

Pamela has 94 small spoons and b big spoons. Choose the expression that shows how many spoons Pamela has.

• b

• 94 – b

• 94 + b

• 94

A piece of ribbon is 𝑦 cm long. Ashley cut it into 4 equal pieces to do her 4 sisters’ hair. Write the expression for the amount of ribbon used for each sister.

• y + 4

• y – 4

• 4y

• y/4

Last week, Shaun had half as many computer games as Johan. He purchased 3 more games this week. Write an expression that represents the number of games Shaun now has if j represents the number of games that Johan has?

• j/2

• j+3

• j/2+3

• 2j +3