Decimal Review Activity - Adding/Subtracting

What is the first step in adding decimals?

• Add the largest numbers first

• Line up the decimal points

• Convert all numbers to fractions

• Round the decimals

Why is it important to line up decimals when adding or subtracting?

• It's only important in subtraction

• It makes the numbers look neater

• To make it easier to carry or borrow

• To ensure correct alignment of place values

What purpose do placeholder zeros serve in decimal operations?

• They are just for aesthetic purposes

• They make the numbers easier to read

• They change the value of the decimal

• They ensure the decimal places are aligned

When adding 9.6 and 3.87, what is the sum?

• 13.47

• 12.47

• 13.57

• 12.57

What is the result of adding 124.792 and 84.5?

• 209.292

• 208.292

• 209.282

• 208.282

What is the first step in subtracting decimals?

• Subtract the smallest number from the largest

• Align the decimal points

• Convert to fractions

• Round to the nearest whole number

What is the result of 14.9 - 8.57?

• 6.33

• 6.43

• 5.33

• 6.23

What does borrowing in subtraction allow you to do?

• Ignore zeros in the decimal

• Increase the value of the number you are subtracting

• Decrease the value of the adjacent higher place value

• Subtract larger numbers from smaller ones

How do you avoid the common mistake of 'dropping' a number in subtraction?

• Using placeholder zeros

• By adding instead of subtracting

• Ignoring the decimal places

• Subtracting from right to left

What is the final result of 262.33 - 59.8?

• 203.43

• 202.43

• 203.53

• 202.53