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Adding Decimals 2 Digit Missing Addend Practice Activities

Class 5 maths worksheets for practising missing addends in 2-digit decimal addition using place value, alignment, and inverse checking.

Practice that builds confidence

What this skill builds

These Class 5 maths worksheets help children practise finding the missing addend in decimal addition problems. The focus is on 2-digit decimal numbers, careful place-value alignment, and understanding that an unknown addend can be found by thinking backwards.

The printable activities include structured sums with blanks, decimal column addition, and problems that encourage children to check answers using addition and subtraction. They fit well within the Decimals Addition Subtraction topic.

Adding decimals with a missing addend asks children to look beyond simply adding two numbers. In a sum such as 3.45 + __ = 7.80, they must identify what number completes the total. This strengthens decimal place value, regrouping, and the connection between addition and subtraction.

A parent and child building confidence with printable worksheet practice

Concept progression

Children begin by aligning decimal points and comparing tenths with tenths and hundredths with hundredths. They then use subtraction to find the unknown part: total minus known addend. The worksheets give repeated practice with 2-digit decimal values so learners can see why zeros may be needed, for example treating 6.5 as 6.50 when working with hundredths.

Parent routine for home practice

Ask your child to read each equation aloud: known addend plus missing addend equals sum. Have them rewrite the numbers in columns, decimal points one below the other. Next, they subtract the known number from the total and place the result back into the blank. Finish by adding both addends to confirm the total. This simple read, align, solve, check routine builds accuracy.

A parent helping a child use a printable worksheet at home

Classroom uses for teachers

Teachers can use these sheets for maths practice after teaching decimal addition and subtraction, as a small-group support activity, or as independent work for early finishers. The missing-addend format is also useful for quick checks because it reveals whether students understand the relationship between the parts and the whole, not just the column algorithm.

Guided practice
Learning stations
Homework review
Quick checks
A teacher modeling worksheet practice with a classroom group

Common errors to watch for

Some children subtract in the wrong order, ignore the decimal point, or line up numbers by the right edge instead of by place value. Others forget to add a zero placeholder before subtracting hundredths. Encourage them to estimate first: if the total is much larger than the known addend, the missing number should make sense in size.

Free printable PDF download

Use this adding decimals 2 digit missing addend worksheets class 5 page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.

Answers and answer key support

After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.

Why iBloom worksheets help

iBloom worksheets keep the focus narrow: finding the missing decimal addend in Class 5. The clean layout gives enough room for column work, while the repeated pattern helps children develop a dependable strategy: line up the decimals, subtract to find the missing part, then add back to check.

Helpful answers

Frequently asked questions

What does missing addend mean in decimal addition?

A missing addend is the unknown number in an addition equation. For example, in 2.35 + __ = 5.60, the child finds the number that must be added to 2.35 to make 5.60.

How should Class 5 children solve these problems?

They should align the decimal points, subtract the known addend from the total, and then add the answer back to check that the original sum is correct.

Why are zero placeholders important in these worksheets?

Zero placeholders help children keep tenths and hundredths in the correct columns. For example, writing 4.7 as 4.70 makes subtraction with hundredths clearer.

Do these worksheets practise addition or subtraction?

They practise both. The question is written as an addition equation, but children often use subtraction as the inverse operation to find the missing addend.

What mistakes should I look for while checking my child’s work?

Watch for decimal points not lined up, subtracting the numbers in the wrong order, missing zeros, and answers that are not checked by adding them back into the original equation.

Is this adding decimals 2 digit missing addend worksheets class 5 free?

Yes. You can preview it for free and use the printable worksheet for home or classroom practice.

Can I download this adding decimals 2 digit missing addend worksheets class 5 as a PDF?

Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.

Does this adding decimals 2 digit missing addend worksheets class 5 include answers or an answer key?

When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.