Operations with Decimals

?

• 16.0

• .16

• 160

• 1.6

• 190

• 1.9

• 19

• .19

?

• 7875

• 78.75

• 7.875

• 7787.5

?

• .04

• .4

• 40

• 4

• $14.94

• $15.30

• $16.20

• $18.00

Answer explanation

To find the total amount spent, multiply the price per pound by the pounds of each fruit and add the results: (3.5 * 2.40) + (2.75 * 3.60) = 8.40 + 9.54 = $14.94. Therefore, Linda spent $14.94 in total.

Subtract 6.5 from 10.2.

• 3.2

• 3.7

• 4.2

• 3.8

Answer explanation

To subtract 6.5 from 10.2, write the numbers vertically lining up the decimal points then subtract. When you bring down the decimal point, you get 3.7. Therefore, the correct answer is 3.7.

Divide 12.4 by 2.

• 6.2

• 6.0

• 5.8

• 7.2

Answer explanation

To divide 12.4 by 2, you get 6.2. Therefore, the correct answer is 6.2.

Multiply 2.5 by 3.4.

• 8.5

• 7.5

• 8.0

• 6.5

Answer explanation

To multiply 2.5 by 3.4, multiply the two numbers together, ignoring the decimal points: 25 * 34 = 850. Looking at the original numbers with the decimal points, you should see a total of two decimal place values between both numbers. Add in two decimal place values into 850 starting from the right to get 8.5 (8.50 with the zero, but the zero is not needed.)

??

• 29.64

• 296.40

• 2.964

• .2964

• $287.17

• $325.00

• $32.50

• $3.25