Subtraction

Learn and practice subtracting numbers with interactive resources from GeoGebra.

Upper Elementary

GRADES 4-5

Estimating Decimal Sums and Differences

Estimate and compute sums and differences with decimals.

RannsóknGR. 4-5

Estimating the Sum of Decimals up to Two Decimal Places

RannsóknGR. 4-5

Estimating the Difference of Decimals up to Two Decimal Places

Estimating Sums and Differences

Apply appropriate type of estimation for sums and differences.

ÞjálfunaræfingGR. 4-5

Two-Digit Addition and Subtraction Estimation Game

Multi-digit Subtraction with Regrouping

Subtract multi-digit numbers with regrouping in number and word problems.

ÞjálfunaræfingGR. 4-5

Multi-Digit Subtraction with Regrouping

Subtracting 2- and 3-digit Numbers

Subtract 2- and 3-digit numbers with and without models for number and word problems that require regrouping.

RannsóknGR. 4-5

Subtracting Numbers with Regrouping Using Models

ÞjálfunaræfingGR. 4-5

Subtraction with Regrouping

Middle School

GRADES 6-8

Adding and Subtracting Integers

Model or compute with integers using addition or subtraction in number and word problems.

RannsóknGR. 6-8

Adding and Subtracting Integers with Balloons and Sandbags

RannsóknGR. 6-8

Adding and Subtracting More Integers with Balloons and Sandbags

Tengd umfjöllunarefni

Absolute Value

Addition

Decimal Numbers

Division

Exponents

Mathematical Expressions

Operations with Fractions

Integers

Mixed Numbers

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