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Decimal Add & Sub Quiz

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Decimal Add & Sub Quiz

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About this activity

Decimal add/sub practice

Created by

M Dela Rosa Darwin Dave D.
M Dela Rosa Darwin Dave D.
Philippines

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Decimal Add & Sub Quiz
 

Decimal Add & Sub QuizOnline version

Decimal add/sub practice

by M Dela Rosa Darwin Dave D.
1

What is 12.75 + 4.30?

2

Compute 6.40 - 2.75.

3

Find 0.90 + 0.56.

4

What is 5.00 - 3.25?

5

Calculate 3.005 + 2.100.

6

Compute 9.20 - 4.86.

7

What is 0.75 + 0.25?

8

Calculate 7.60 - 1.305.

9

Find 2.333 + 0.667.

10

Compute 10.05 + 0.95.

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Add decimals by lining up the decimal points; 75+30=105, so 17.05.

Subtract after aligning decimals: 40-75 leads to borrowing to get 3.65.

Sum tenths and hundredths: 90+56=146 → 1.46.

Subtract to get 1.75; align decimals for correct place values.

Add digits by place value: 5 + 2 = 7, carry as needed to 5.105.

Line up decimals: 20-86 requires borrowing to 4.34.

Adds to exactly 1.00 since 75 and 25 sum to 100.

Align decimals: 7.60 - 1.305 = 6.295.

Sum: 333+667=1000 → 3.000.

Add to 11.00; 0.05 + 0.95 = 1.00, carry to whole number.

 
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