Free printable practice
Adding Decimals 2 Digit Missing Addend Harder Practice Activities
Class 5 maths worksheets for finding missing addends in harder two-digit decimal addition problems using place value and subtraction.
Practice that builds confidence
What this skill builds
These Class 5 maths worksheets help children practise harder missing-addend questions in decimal addition, such as finding the unknown number in an equation rather than simply adding two given decimals. The focus is on place value, careful alignment of decimal points, and understanding that addition and subtraction are connected.
The printable activities include decimal equations with a blank addend in different positions. Children solve by thinking, “What must be added to make the total?” and by using subtraction to check their answer within the Decimals Addition Subtraction skill area.
Missing-addend decimal addition asks children to complete equations such as 3.47 + ___ = 8.20 or ___ + 1.86 = 5.04. This is harder than ordinary addition because the child must identify the unknown part, not just calculate a total. It strengthens place value, inverse operations, and confidence with tenths and hundredths.

How the practice progresses
The worksheets move children towards reading each equation carefully, lining up decimal points, and subtracting the known addend from the sum. Problems may place the blank before or after the plus sign, so learners cannot rely on pattern alone. They learn that 8.20 - 3.47 gives the missing addend, and that the answer should be checked by adding it back.
Parent routine for home practice
Ask your child to read one question aloud and circle the total. Then have them write a matching subtraction sentence: total - known addend = missing addend. Use squared paper if alignment is an issue. After every few questions, ask, “Does your answer make the original addition true?” This short verbal check catches many decimal mistakes.

Classroom uses for teachers
Teachers can use these sheets after direct teaching of decimal addition and subtraction, as independent practice, remedial work, or maths centre tasks. They also work well for partner checking: one child solves, the other verifies by addition. The format supports quick observation of whether pupils understand the inverse relationship or are guessing the blank.

Common errors to watch for
Many Class 5 learners subtract digits without aligning decimal points, ignore a zero in numbers like 8.20, or treat hundredths as whole numbers. Some subtract the total from the addend because they have not identified the whole. Encourage children to label the total first and keep digits in the correct place-value columns.
Free printable PDF download
Use this Class 5 adding decimals missing addend worksheet 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
These iBloom worksheets give focused practice on one precise skill: harder two-digit decimal missing addends. The repeated equation format builds fluency, while changes in blank position keep children thinking. A child-friendly strategy is: find the total, subtract the known part, then add back to prove it.
Helpful answers
Frequently asked questions
What does a missing addend mean in decimal addition?
A missing addend is the unknown number in an addition equation. For example, in 2.75 + ___ = 6.40, the child must find the decimal that completes the sum.
How should my child solve these harder decimal questions?
They should first identify the total, then subtract the known addend from it. Finally, they should add the answer back into the original equation to check that it works.
Why is decimal point alignment important here?
Decimal point alignment keeps tenths under tenths and hundredths under hundredths. Without it, children may subtract digits from the wrong place-value columns.
Are these worksheets suitable before regular decimal subtraction practice?
They are best used after children can add and subtract decimals with reasonable confidence, because missing-addend problems depend on understanding subtraction as the inverse of addition.
What common mistake should I look for in answers like 8.20 - 3.47?
Children may ignore the zero in 8.20 or forget to regroup across decimal places. Encourage them to write 8.20 clearly and keep every digit in its place-value column.
Is this Class 5 adding decimals missing addend worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 5 adding decimals missing addend worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this Class 5 adding decimals missing addend worksheet 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.