Free Online CBEST Math Questions and Answers

Question 1

The BEST estimate for 3995 102 is which of the following?

Accepted Answer

400,000

Answer

To estimate the product of 3995 and 102, round each number to its nearest significant value. 3995 rounds up to 4000, and 102 rounds down to 100. Multiplying these rounded numbers gives 4000 * 100 = 400,000, which is the best estimate among the choices.

Question 2

Carla purchases nine pens at $1.10 each. Which of the following sums up the change she would get if she used a $20 bill to buy the pens?

Accepted Answer

$20 – (9)($1.10)

Answer

To calculate the change, you first need to determine the total cost of the pens. This is done by multiplying the number of pens (9) by the price per pen ($1.10). Then, you subtract this total cost from the amount of money Carla used ($20). The expression $20 – (9)($1.10) accurately represents these steps.

Question 3

Jason takes two tablets from kind A, three from type B, and one from type C of medication each day. If he forgets to take the type B tablets on each of two days, how many pills will he take in total in 14 days?

Accepted Answer

78

Answer

Jason normally takes 2+3+1 = 6 pills per day. Over 14 days, he would typically take 6 * 14 = 84 pills. However, he missed 3 type B tablets on two separate days, meaning he missed a total of 3 * 2 = 6 pills. Therefore, the total number of pills he took is 84 - 6 = 78.

Question 4

What is the largest of these decimals?

Accepted Answer

0.82

Answer

To compare decimals, it's helpful to align them by the decimal point and add trailing zeros so they all have the same number of decimal places. Comparing 0.0082, 0.8200, 0.0280, and 0.8088, it becomes clear that 0.8200 (which is 0.82) has the largest value.

Question 5

How many green or brown crayons out of all the crayons are in Box B?

Accepted Answer

30%

Answer

To determine the percentage of green or brown crayons in Box B, you would first add the number of green crayons and the number of brown crayons. Then, divide this sum by the total number of crayons in Box B. Finally, multiply the result by 100 to express it as a percentage. Based on the underlying data (not provided), this calculation yields 30%.

CBEST - California Basic Educational Skills Test Practice Test

CBEST - California Basic Educational Skills Test Practice Test

Free Online CBEST Math Questions and Answers