Class 3/4 Decimals, Fractions, Percentages Revision (T. Lovell-Holligan)

Section A- Fractions 

Convert to Improper Fractions:

Find the equivalent fractions:

                            

Reduce these fractions. 

Find the LCM of the given numbers: 

11.         16 and 20

12.        8 and 20

13-16. Add or Subtract. Remember to write as a mixed number and reduce when possible. 

SECTION B- DECIMALS

Write these numbers:

1. Twenty-nine hundredths

2. Eighty-one thousandths

3. Nine thousand thirty-four and seven-tenths

4. One and four thousandths

5. One hundred and sixty-two thousandths 

6. Forty-five hundredths

7. Four thousand three hundred twenty-one ten-thousandths 

8. One hundred twenty and five-tenths

 

Change the following fractions and mixed numbers to decimal numbers. Round answers to the nearest thousandth, if necessary. 

Change the following decimal numbers to fractions or mixed numbers. Reduce answers, if possible.

13)     0.2             14)     0.625                     15)     0.1875

Multiply (Class 4's Only)

16)        2. 1 x 0.09        17)     35.1 x 0.8            18)    3.05 x 1.3

Section C- Percentages

1. What is 30% of 840?

2. Find 25% of 4 metres? 

3. A backpack costs $580. A pencil case costs 15% less. What is the cost of the pencil case?

4. James wants to buy a laptop which costs $1250. He only has 25% of the money. 

    a. How much money does he have?

    b. How much more money does he need to buy the laptop?

5.  Dominic has saved $800 but Jay has saved 38% more. How much money does Jay have?

6. What number is 13% less than 2500?