grade 5 math decimals review quiz

📚 Quick Study Guide

• 🔢 Understanding Place Value: Decimals represent parts of a whole. The place values to the right of the decimal point are tenths, hundredths, thousandths, and so on.
• ➕ Adding Decimals: Line up the decimal points, then add each column as you would with whole numbers. Remember to carry over if necessary.
• ➖ Subtracting Decimals: Line up the decimal points, then subtract each column. You may need to borrow from the next column.
• ✖️ Multiplying Decimals: Multiply as you would with whole numbers. Then, count the total number of decimal places in the factors and place the decimal point in the product accordingly.
• ➗ Dividing Decimals: If the divisor (the number you are dividing by) has a decimal, move the decimal point to the right until it becomes a whole number. Move the decimal point in the dividend (the number being divided) the same number of places. Then, divide as you would with whole numbers.
• 💡 Comparing Decimals: Line up the decimal points. Add zeros to the right of the decimals, if necessary, so that all numbers have the same number of decimal places. Then, compare the numbers as you would with whole numbers.

🧪 Practice Quiz

1. What is 0.3 + 0.5?
   1. 0.15
   2. 0.8
   3. 3.5
   4. 8
2. What is 1.2 - 0.4?
   1. 1.6
   2. 0.8
   3. 4.8
   4. -0.8
3. What is 0.2 x 0.3?
   1. 0.6
   2. 0.06
   3. 6
   4. 0.006
4. What is 1.0 ÷ 0.5?
   1. 0.5
   2. 2
   3. 0.2
   4. 5
5. Which decimal is the largest?
   1. 0.25
   2. 0.3
   3. 0.2
   4. 0.03
6. What is 0.75 as a fraction in simplest form?
   1. $\frac{1}{4}$
   2. $\frac{1}{2}$
   3. $\frac{3}{4}$
   4. $\frac{75}{100}$
7. What is 5.67 rounded to the nearest tenth?
   1. 5
   2. 5.6
   3. 5.7
   4. 6