Curated OER
Missing Number Game
Math partners help each other with number sequences in this interactive game. Young scholars arrange number cards in order, and Partner A closes his eyes. Partner B removes one card, after which Partner A must determine which card has...
Curated OER
Counting Up and Down
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...
Curated OER
Inverse
Your class can learn all about inverse operations. They will review what inverse operations are, see examples, learn how to use inverse operation to check an answer, write addition and subtraction equations in the inverse, and use the...
Curated OER
Recognizing Equivalent Fractions
These 10 equivalent fractions are each missing a number. There isn't much to this activity, but if you're looking for some practice problems you've found them. Encourage kids to draw the process into each, since the numbers are large and...
Curated OER
Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
Curated OER
Count by 5s, 10s, and 100s
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...
Curated OER
Mentally Add and Subtract 10 or 100
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...
Curated OER
Unknown Addends (to 20): Count the Blank Boxes
By filling in the blank squares, learners complete five addition number sentences both visually and numerically. For each problem, a frame is filled with a certain number of images (turkeys, candles, etc.) and a certain number of blank...
Curated OER
Patterns Based On Subtractions
In this on-line math activity, students complete 10 multiple choice questions where they find the missing number to a pattern by using subtraction. Students can check their answers at the end of the activity.
Curated OER
Missing Number Squares
For this missing numbers worksheet, students fill in missing numbers in a set of 4 number squares. An answer key and website reference are given.
Curated OER
Proportions
In this ratios worksheet, students find the missing number in the second ratio in the problem. Students complete 9 ratio/proportion problems.
Curated OER
Ratios: missing number
In this ratios worksheet, students find the missing number in each ratio for numbers up to 10. Students complete 7 ratio problems.
Curated OER
Number Order Review for Grade 1
In this number order review for grade 1 worksheet, 1st graders answer 10 multiple choice questions, not interactively, about increasing and decreasing numerical order, missing numbers in a series, with answers available.
Curated OER
Multiplication: Fill In The Blank
In this multiplication worksheet, students fill in the missing number for one and two digit number multiplication equations. Students complete 5 problems.
Curated OER
Counting: Missing Number to 100
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.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses
[Free Registration/Login may be required to access all resource tools.] The resource includes a video tutorial on how to find a missing number in a multi-operational problem by working backwards. The video is followed by practice...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Missing Number
[Free Registration/Login may be required to access all resource tools.] The resource is a video showing students how to find a missing number in a multi-step addition and subtraction problem using inverse operations. Adaptive practice...
Math Is Fun
Math Is Fun: Fill in the Missing Numbers
Click the empty spaces to be given four choices for the missing number. Choose the correct one for each of the empty spaces, then play again!
CK-12 Foundation
Ck 12: Elem Math: Finding the Number Needed Using Division
[Free Registration/Login may be required to access all resource tools.] Students attempt division practice problems in which they solve to find the number needed.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses Missing Number
[Free Registration/Login may be required to access all resource tools.] This is a video and practice problems finding the missing number of a multi-step addition and subtraction problem that has parentheses. The video models the process...
PBS
Pbs Kids: Curious George: Apple Picking
Help George to pick the correct numbered apple that fills the gap in the number line.
Better Lesson
Better Lesson: Count by 10's
Numbers don't stop at 20! This lesson looks at the numbers beyond 20 using the book "The Cheerios Counting Book" by Barbara Barbieri McGrath. This lesson includes a detailed plan, links to center ideas, a printable worksheet, and a video...
E-learning for Kids
E Learning for Kids: Math: Music, Dance Performance: Multiplication
This interactive site provides students an opportunity to practice their multiplication skills by helping organize and count musical instruments.
Math Slice
Basic Math: Missing Number
This resource covers numbers in sequence where students can choose a range of numbers and which number they want to practice counting by to determine the missing number in the set of numbers. After selecting parameters students are timed...