i-Ready Diagnostic Test Problem-Solving Skills 3

Question 1

A rectangle has a length of 9 cm and a width of 4 cm. What is its perimeter?

Accepted Answer

26 cm

Answer

Perimeter = 2(9 + 4) = 2 × 13 = 26 cm.

Question 2

If x + 15 = 32, what is the value of x?

Accepted Answer

17

Answer

Subtract 15 from both sides: x = 32 − 15 = 17.

Question 3

A bag has 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of picking a blue marble?

Accepted Answer

3/10

Answer

There are 10 total marbles; probability = 3/10.

Question 4

Which of the following is the best estimate for 497 × 6?

Accepted Answer

3,000

Answer

Round 497 to 500; 500 × 6 = 3,000.

Question 5

A school garden is 12 feet long and 8 feet wide. What is the area of the garden?

Accepted Answer

96 sq ft

Answer

Area = length × width = 12 × 8 = 96 square feet.

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