Worksheet: Adding and Subtracting Decimals: Three Decimal Places

In this worksheet, we will practice adding and subtracting numbers with up to three decimal places using a variety of methods, including the column method.

Q1:

Calculate 510.339+486.469.

Q2:

Calculate 37.983+19.57+41.04.

Q3:

Calculate the following: 10.2079+48.4128.

Q4:

Calculate 154.502+29.699.

Q5:

Calculate the following: 0.19390.0254.

Q6:

Calculate 37+0.086.

Q7:

Calculate 18.884+67110.

Q8:

=72+0.4+0.09+0.003.

Q9:

Sophia wanted to buy some snacks and juice. If she had $25 and bought some fruits for $14.35 and a gallon of apple juice for $2.22, find how much she would have after paying.

Q10:

Mason bought a tie for $14.51 and a shirt for $23.38. Determine how much he will get back if he pays with a $50 bill.

Q11:

A woman has 145 LE and wants to buy a pair of shoes for 49.20 LE, a bag for 42.25 LE, and a dress for 54.50 LE. Does she have enough money to buy all three items?

  • Ano
  • Byes

Q12:

Olivia bought a washing machine for 2,077.50 LE and a TV set for 1,131.75 LE. If she had 3,670 LE before she bought them, how much money does she have now?

Q13:

The table shows the most popular email service providers in 2,016.

ServiceGoogleYahoo!MSNBellSouthAOL
Number of People (billion) 1.2 10.725 0.2850.174

How many more people used the top three services than those who used the fourth- and fifth-ranked services combined?

  • A4.123 billion
  • B0.582 billion
  • C2.466 billion
  • D5.478 billion
  • E1.452 billion

Q14:

Calculate 10.826+157.666.

Q15:

Calculate 234.7+182.777.

Q16:

Calculate 440.201+390.97.

Q17:

Calculate 44.85+4.575+49.7.

Q18:

Calculate 34.853+16.512+28.23.

Q19:

Calculate 28+0.514.

Q20:

Find the length of 𝐴𝐵.

Q21:

Find the length of 𝐽𝐿.

Q22:

A cheese trader has a total amount of 48 kg of cheese. Suppose the trader sells 5.62 kg on the first day and then 17.825 kg the day after. How many kilograms does the trader have left, rounded to the nearest hundredth?

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