IAR Test 3rd Grade Math #1

Question 1

Which two kitchen task take a total of exactly one and a half hours?

Accepted Answer

Cake and Steamed Tuna

Answer

This question requires specific task durations, which are not provided in the prompt. Assuming there is an accompanying list of kitchen tasks and their times, the correct answer 'Cake and Steamed Tuna' implies that the sum of their individual durations equals exactly one and a half hours (90 minutes). For example, if 'Cake' takes 1 hour and 'Steamed Tuna' takes 0.5 hours, their combined time is 1.5 hours.

Question 2

Which of the following is the same as the expression below?
7 × 4

Accepted Answer

(3+4) x 4

Answer

The expression 7 × 4 can be rewritten by breaking down the number 7 into a sum. Since 7 is equivalent to (3 + 4), substituting this into the original expression yields (3 + 4) × 4. This demonstrates the distributive property of multiplication over addition, where the sum is then multiplied by the other factor.

Question 3

What is the total number of dresses sold in five days?

Accepted Answer

47

Answer

This question requires data from a missing chart or table showing daily dress sales over five days. To find the total number of dresses sold, one would sum the individual sales figures for each of the five days. The correct answer of 47 indicates that the sum of the daily sales from the implied data equals 47.

Question 4

Jake bought an electronic gadget worth $460.
What is 460 rounded to the nearest hundred?

Accepted Answer

500

Answer

To round 460 to the nearest hundred, you need to look at the tens digit. The tens digit in 460 is 6. Since 6 is 5 or greater, you round up the hundreds digit. Therefore, 460 rounded to the nearest hundred becomes 500.

Question 5

Which of the following equations is a pair of related facts?

Accepted Answer

64 ÷ 8 = n and 8 × n = 64

Answer

Related facts, also known as a fact family, are a set of mathematical equations that use the same numbers but different operations, demonstrating their inverse relationship. The equations 64 ÷ 8 = n and 8 × n = 64 are related because they both involve the numbers 64, 8, and n, illustrating that division and multiplication are inverse operations. If 64 divided by 8 equals n, then 8 multiplied by n must equal 64.

IAR Practice Test

IAR Practice Test

IAR Test 3rd Grade Math #1