ACCUPLACER Arithmetic Test 1

Question 1

2.75 + 0.003 + 0.158 =

Accepted Answer

4.36

Answer

To add decimals, align the numbers by their decimal points and sum each column from right to left, carrying over when necessary. Adding 2.75 + 0.003 + 0.158 correctly yields 2.911. Option D (4.36) is incorrect, likely resulting from misaligning decimal points or calculation errors, as the sum of these numbers cannot exceed 3.

Question 2

7.86 × 4.6 =

Accepted Answer

36.216

Answer

To multiply decimals, first multiply the numbers as if they were whole numbers (786 × 46 = 36156). Then, count the total number of decimal places in the original factors (two in 7.86 and one in 4.6, for a total of three). Place the decimal point three places from the right in the product, resulting in 36.156. Option B (36.216) is incorrect, indicating a calculation error in the multiplication process.

Question 3

7 \/ 20 =

Accepted Answer

0.035

Answer

To convert the fraction 7/20 to a decimal, divide the numerator by the denominator (7 ÷ 20). This can be done by long division or by converting the fraction to an equivalent one with a denominator of 100: 7/20 = (7 × 5) / (20 × 5) = 35/100 = 0.35. Option A (0.035) is incorrect, as it represents 7/200, not 7/20.

Question 4

Which of the following is the least?

Accepted Answer

0.15

Answer

To compare decimals, align them by their decimal points and compare digits from left to right, starting with the tenths place. For 0.105, 0.501, 0.015, and 0.150 (adding a zero to 0.15 for easier comparison), 0.015 has a 0 in the tenths place, which is smaller than the 1 in 0.105 and 0.150, and the 5 in 0.501. Therefore, 0.015 is the least. Option D (0.15) is greater than 0.015.

Question 5

All of the following are ways to write 25 percent of N EXCEPT

Accepted Answer

25N

Answer

'25 percent of N' means N multiplied by 25/100 or 0.25. Options A (0.25)N and B (25/100)N (assuming N is implied for B) correctly represent this. Option D, 25N, means N multiplied by 25, which is 2500% of N, not 25% of N. Therefore, 25N is the expression that does NOT represent 25 percent of N.

Accuplacer Practice Test

Accuplacer Practice Test

ACCUPLACER Arithmetic Test 1