Whole Number and Decimal Operations

Add and Subtract Whole Numbers and Decimals

This topic deals with addition and subtraction of whole numbers and decimals. Different methods of addition - Partial Sums, Column Addition and Compensation, and subtraction - Column Subtraction, Left-to-Right and Compensation are covered in this track.

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Estimate Products of Whole Numbers and Decimals

This topic covers the concept of estimating products of whole numbers and decimals by rounding the factors or, in some cases, estimating by clustering.

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Estimate Sums and Differences of Whole Numbers and Decimals

In this topic, we learn to estimate sums and differences of whole numbers and decimals. We also learn to round whole numbers, decimals, and money.

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Multiply Whole Numbers

This topic covers the concept of multiplying whole numbers. We learn to multiply by one-digit, two-digit, and three-digit numbers, and to multiply three factors.

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Patterns of Multiplication

In this topic, we learn to multiply whole numbers by multiples of 10. We do this either by using patterns or by counting zeros.

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Properties and Methods of Addition

This topic covers the properties of addition. We learn about the Associative, Identity, and Commutative properties of addition. We also learn some quick methods to add/subtract whole numbers and decimals.

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Properties of Multiplication

This topic teaches us various Properties of Multiplication to help multiply. The properties include: Associative, Commutative, Distributive, Identity, and Zero Property.

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