Free printable practice
Adding Decimals 1 Digit Missing Addend Practice Activities
Class 5 maths worksheets for finding the missing addend in one-decimal-place addition using tenths, aligned decimals, and inverse subtraction.
Practice that builds confidence
What this skill builds
These Class 5 maths worksheets help children practise adding decimals with 1 digit after the decimal point when one addend is missing. Children work with tenths, read equations carefully, and find the unknown number that completes each decimal addition sentence.
The printable activities include missing-number sums, horizontal and vertical decimal equations, and practice that connects addition with subtraction. Learners build accuracy with decimal points, place value, and checking answers in the Decimals Addition Subtraction topic.
Adding decimals with a missing addend asks children to think beyond simply adding two given numbers. In a sum such as 3.4 + ___ = 5.9, the child must identify the unknown part. This strengthens understanding of tenths, whole numbers, and the meaning of an equation. It also prepares learners for word problems where one quantity is not directly given.
How the worksheets progress
The practice focuses on decimals with 1 digit after the decimal point, so children can concentrate on tenths without being overloaded by many decimal places. Questions may appear as ___ + 2.6 = 7.1, 4.8 + ___ = 6.0, or in column form with decimals aligned. As the set progresses, learners become more comfortable using inverse operations: if one addend and the total are known, subtract the known addend from the sum.
Parent practice routine
At home, begin by reading each equation aloud: “What number plus 2.3 makes 6.5?” Ask your child to estimate first, then subtract to find the exact missing addend. Encourage writing decimals neatly in columns, with decimal points directly under one another. After solving, have the child check by adding the missing number back into the original sum. This simple routine builds both confidence and self-correction.
Classroom uses for teachers
Teachers can use these sheets after introducing decimal addition and subtraction of tenths, as independent practice, maths centres, revision work, or quick assessment. They are also useful for small-group support because they reveal whether a learner understands the relationship between addition and subtraction, or is only following a memorised procedure.
Common errors to watch for
Children may ignore the decimal point, subtract the smaller digit from the larger digit in each place, or write 6.0 as 6 and forget that it still has zero tenths. Some may try to add all visible numbers instead of finding the missing addend. Remind them that the total must stay the same and the blank represents one whole number with tenths.
Free printable PDF download
Use this Class 5 adding decimals 1 digit 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
The iBloom activities keep the focus narrow: one-decimal-place missing addends within decimal addition. This gives children repeated, purposeful practice with the same core idea in different layouts. A child-friendly strategy is: “Find the total, take away the known part, then add back to check.”
Helpful answers
Frequently asked questions
What does “1 digit” mean in these decimal worksheets?
It means the decimals have one digit after the decimal point, such as 2.7 or 6.0. Children mainly work with tenths.
How should a child find the missing addend in decimal addition?
They should subtract the known addend from the total. For example, in 3.5 + ___ = 8.2, solve 8.2 − 3.5, then check by adding the answer back.
Are these worksheets suitable before teaching decimal subtraction?
They work best after children have some understanding of subtracting decimals with tenths, because the missing addend is found using the inverse operation.
Why do some sums include decimals like 6.0?
Decimals such as 6.0 help children see that a whole number can be written with zero tenths. This supports correct decimal alignment and place value.
What mistakes should I correct during practice?
Watch for misaligned decimal points, treating decimals like whole numbers, or adding the given numbers instead of finding the blank part of the equation.
Is this Class 5 adding decimals 1 digit 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 1 digit 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 1 digit 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.