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Showing Results for estimating to subtract

For students learning how to estimate during subtraction, this exercise will make matters much simpler.


Estimating to Subtract

Subtracting with multiple zeros in the “top number” doesn’t need to be a seemingly endless cycle of borrowing. The Subtract One strategy simplifies the task with two easy steps.

Subtract One Strategy: Subtracting with Zeros

Many students cringe when they see a subtraction problem with multiple zeros. The “Subtract One” strategy in this lesson involves reducing the top number by one to turn the 0 digits into 9’s and then adding the one back in at the end.

“Subtract One” Strategy: Subtracting From Zeros Without Borrowing

Subtract the numbers to find the difference, then color code the answer for odd or even.

Subtracting Raindrops

Become a master subtracter with this helpful subtraction strategy!

Subtract Using Decomposition: Make a Number Line Model #3

Learn to solve double-digit subtraction problems with this compensation worksheet for second and third graders!

Subtract Using Compensation: Match and Solve

Children learn to subtract their way to the quotient in this division worksheet.

Division with Repeated Subtraction

Build your two-digit subtraction skills with this inviting worksheet!

Subtract Using Compensation: Number Line Models

Adding and subtracting large numbers can sometimes be difficult. Estimating is an easy way to figure out if your answer is close, or if you need to try again.

Using Estimation: Knowing What’s Too Big and Too Small

What&rsquo;s the heaviest object in your home? What about the lightest? Find out with this helpful third-grade worksheet!

Estimating Mass: Around the House

Learn to use the compensation strategy to construct simpler subtraction problems in this colorful worksheet!

Subtract Using Compensation: Make a New Equation

Kids use details from the word problems on this third grade math worksheet to construct and solve subtraction problems with numbers up to three digits long.

Subtraction Word Problems: Subtract 'Em

It's time to calculate.. time! In this exercise your class will use a number line to add and subtract time.

Solving Time Problems with a Number Line

Review subtraction and check your work with this worksheet that asks kids to subtract, then add in reverse.

Check Your Work: Subtraction

Can you break a ten? An everyday exchange of money can help students think about regrouping to subtract. Students will use bundled popsicle sticks to see how values grouped into tens can be regrouped into ones to allow us to subtract. 



Regrouping with Popsicle Sticks: Double-Digit Subtraction

From the tiniest ant to the biggest elephant, every animal has a mass!

Estimating Mass: At the Zoo

Break down two-digit numbers into tens and ones in this helpful subtraction worksheet!

Subtract Using Decomposition: Make a New Equation #2

Solve double-digit subtraction problems with ease in this second- and third-grade worksheet!

Subtract Using Decomposition: Make a New Equation #1

Get your lasso ready, it's time to round up the hundreds herd! Your rounding rancher will practice estimating numbers to the nearest hundred.

Rounding to the Nearest Hundred

Don&rsquo;t get discouraged by tricky two-digit subtraction; instead, try the decomposition method!

Subtract Using Decomposition: Make a Number Line Model #2

Practice the decomposition method of subtraction in this accessible worksheet!

Subtract Using Decomposition: Make a Number Line Model #1

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

Spooky Halloween Jars

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

Subtraction with Regrouping

Let's get to the point: the decimal point, that is! On this third grade math worksheet, kids learn how to subtract decimals.

Decimal Subtraction

This lesson introduces students to measuring and estimating liquid volume, using liters (l) as the standard unit of measurement.

A Liter Please

Teach your students to add and subtract time using number lines. Your class will be gladly moving backwards and forward to the minute solving for related word problems.

Timeline Solutions for Time Problems

Start your students on subtracting three-digit numbers with this lesson that breaks the problems down by place values!

Fluently Subtracting within 1000

Get your students explaining estimations and measurements of liquid volumes and masses of objects! Use this lesson independently or alongside *Estimating Measurements of Mass and Volume Using Metric Units.*

Which Unit of Measurement?

Students will become more familiar with common metric measurements by matching everyday objects with the metric mass and volume units they would use to measure them. 

Estimating Measurements of Mass and Volume Using Metric Units

Master rounding and estimating skills by having students challenge their classmates in the Make a Big Difference game. Roll three dice two times to arrive at two three-digit numbers. The largest difference wins!

Make a Big Difference

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