MCAS Sample Practice Test

Adding 345 and 267 gives 612 because 300 + 200 equals 500 and 45 + 67 equals 112, resulting in 612 when combined. The other options are common mistakes due to miscalculation.

Multiplying 7 by 8 correctly gives 56. The other options are typical errors when recalling multiplication facts.

Since 12 multiplied by 12 equals 144, dividing 144 by 12 yields 12. The other numbers do not satisfy this multiplication relationship.

The fraction 2/4 simplifies to 1/2 when both the numerator and denominator are divided by 2. The other fractions are not equivalent.

A three-sided polygon is called a triangle. The other options refer to polygons with four or more sides.

Subtracting 478 from 902 results in 424 when calculated properly using place value subtraction. The other options are errors stemming from miscalculation.

Multiplying 56 by 7 gives 392 by breaking the multiplication into parts (50 x 7 and 6 x 7). The other answers are the result of common multiplication mistakes.

Dividing 125 by 12 gives a quotient of 10 with a remainder of 5 since 12 x 10 = 120 and 125 - 120 = 5. The distraction options do not match the correct remainder.

Convert 1/2 to 2/4 so that when added to 1/4, it results in 3/4. The resulting fraction is already in simplest form.

When adding decimals, aligning the decimal points shows that 3.5 + 2.75 equals 6.25. The other options arise from errors in adding decimal values.

According to the order of operations, multiplication comes before addition; 3 x 4 equals 12 and adding 2 gives 14. The other answers ignore the proper order of operations.

The area is calculated by multiplying length by width: 8 x 3 equals 24. The distractor answers are results of incorrect multiplication.

A square's perimeter is found by multiplying the side length by 4: 5 x 4 equals 20. The other options are miscalculations of the perimeter.

Since 1 meter equals 100 centimeters, 2 meters equals 200 centimeters. The other answers stem from an incorrect conversion factor.

There are a total of 10 marbles and 2 of them are blue, so the probability is 2/10 which simplifies to 1/5. The other options reflect miscalculations in forming the probability ratio.

Convert both fractions to have a common denominator of 24: 7/8 becomes 21/24 and 1/3 becomes 8/24. Subtracting gives 13/24, which is already in simplest form.

Let the width be w; then the length is 2w. The perimeter equation is 2(w + 2w) = 6w = 36, so w = 6 and the length is 12. The area is calculated as width x length, giving 6 x 12 = 72.

Multiplying the fractions gives (2 x 3 x 4)/(3 x 4 x 5) = 24/60, which simplifies to 2/5 when both numerator and denominator are divided by 12. The other answers do not correctly simplify the product.

Multiplying 0.6 by 0.25 involves multiplying 6 by 25 to get 150 and then placing the decimal point correctly to yield 0.15. The other options result from misplacing the decimal point.

Seventy-five percent of 40 is calculated by 0.75 x 40, which equals 30. This means the student answered 30 questions correctly, while the other options are incorrect calculations.