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Worksheet
Curated OER

Missing Addends

For Students 1st - 2nd
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the concept....
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Worksheet
Curated OER

What's Missing?

For Students K - 2nd
Add a challenge for your young mathematicians' adventures in double-digit addition. Instead of simply computing sums in the 9 problems, they work backwards to fill in blanks among the addends. Resource makes a terrific extension or...
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Interactive
Curated OER

Missing Numbers - Subtraction Worksheet

For Students 1st
In this subtraction worksheet set, 1st graders find the differences to 51 online, single digit subtraction problems. They insert the subtrahend in each problem. They print the page if the want to save the data or work on the page at...
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Worksheet
Curated OER

Two Digit Addition With No Regrouping Worksheet #7

For Students 1st - 2nd
There is no need to regroup to complete this set of 20 addition problems. Learners will add two-digit numbers togther each sum. 
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Worksheet
Curated OER

Count by 5s, 10s, and 100s

For Students 1st - 2nd
These number sequences are missing digits! Each of the six has one missing number and scholars must figure out what it is. Here's the pattern, though: all of these sequences involve counting by 5s, 10s, and 100s. Learners add one of...
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Lesson Plan
Curated OER

What's That Number? 1-Digit Addition and Subtraction

For Teachers 1st - 2nd
In this subtraction and addition worksheet, students fill in missing numbers in problems necessary to arrive at given answers. All problems use 1-digit numbers only.
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Worksheet
DK Publishing

The Missing Numbers

For Students K - 1st Standards
Where are all the numbers? Scholars practice with number sequences in different formats as they fill in numerals. First, an analog clock face is missing four numbers. Next, they write in the next four digits in a single-digit sequence....
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Worksheet
Curated OER

Adding Up

For Students 1st - 2nd
Make addition visual in order to help beginners understand the concept. They add up beads on a string, examining an example before trying it on their own. Learners fill in addends and sums for these, and sometimes both. Although...
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Worksheet
Curated OER

Ones and Tens Place Fill Ins Worksheets

For Students 1st - 3rd
There are five numbers here, each of which needs to be decomposed into place values. Young mathematicians complete missing information in a chart which splits numbers into tens and ones. They must fill in the numerals or the tallies...
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Worksheet
Curated OER

Counting Up and Down

For Students 1st Standards
These number sequences are missing quite a few digits; can your scholars determine some of them? Because learners aren't filling in every blank, they must utilize mental math to determine only the few numbers indicated. They count...
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Worksheet
Curated OER

Making Addition Sentences True

For Students 1st - 2nd Standards
Introduce scholars to the commutative and additive identity properties of addition with two sets of practice problems. First, they fill in the missing addend by choosing from a group of three possible answers. These six addition...
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Worksheet
Curated OER

Understanding Place Value, Up to 3-Digit Numbers

For Students 1st - 3rd Standards
Work on place value and addition. Here is a resource that features different types of problems for your second graders to solve. After studying the example at the top of the page, they write the missing number in 12 addition problems....
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Worksheet
Curated OER

Round 4-Digit Numbers

For Students 1st - 3rd
In this rounding numbers practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to round 4-digit numbers.
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Worksheet
Curated OER

Two Digit Addition Worksheet: No Regrouping Worksheet #3

For Students 1st - 2nd
In this addition worksheet, students solve 20 problems in which two digit numbers are added with no regrouping. There is a number line provided.
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Worksheet
Curated OER

Missing Numbers Subtraction (D)

For Students 1st - 2nd
In this horizontal subtraction worksheet, students study the given numbers in the subtraction equations and solve the sentences by finding the missing number with subtraction. Students solve 24 equations.
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Worksheet
EdHelper

Addition: Missing Number Fill In

For Students 1st - 2nd
For this addition instructional activity, students fill in a missing addend to solve 23 problems. Worksheet is part of a subscription site with links and is labeled as a sample.
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Worksheet
Curated OER

Two Digit Addition Without Regrouping

For Students 1st - 2nd
In this addition worksheet, students solve 20 problems in which two digit numbers are added. There will be no regrouping on this page.
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Worksheet
Curated OER

Filling in the Missing Numbers

For Students 1st
For this counting by 1 worksheet, 1st graders fill in 18 missing numbers in sequential order in 6 sets of numbers involving single and double digit numbers.
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Lesson Plan
Curated OER

Math Lesson Plan : Finger Counting

For Teachers 1st - 2nd
Create a class of mathematics master. They practice addition to ten until they have mastered the skill. They use their hands to add numbers and eventually find the missing addend to make a sum of 10. They also subtract a single digit...
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Worksheet
Curated OER

Mentally Add and Subtract 10 or 100

For Students 1st - 2nd
Get your mental mathletes in top form with this number sequence worksheet! They must add or subtract 10 from a number to complete these number lines, finding the missing three-digit numeral from a list of answers. Encourage verbal or...
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Worksheet
Curated OER

Add and Subtract within 20

For Students 1st - 2nd
Here is a more interesting way to practice addition and subtraction number sentences. Learners complete two sum boxes, adding across and down then totaling for a final sum. They do the same with subtraction in two more boxes. Finally,...
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Worksheet
Curated OER

Missing Four Digit Numbers

For Students 1st - 2nd
In this missing numbers worksheet, students analyze the series of 4 digit numbers in each of five rows. Students fill in the missing numbers; all are counting by ones.
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Worksheet
Curated OER

Counting: Missing Number to 100

For Students 1st - 3rd
In this counting exercise, students write in the missing number in each series of numbers by counting up, with a range from 1 to 100.
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Worksheet
Curated OER

Counting: Missing Number

For Students 1st - 2nd
In this missing numbers worksheet, students solve 15 problems that require them to fill in the blanks in number lines that are missing 2-digit numbers.

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