Mathematics Concepts

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Place Value

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The value of a digit based on its position in a number (e.g., in 23, the '2' is in the tens place, and the '3' is in the ones place).

Tags

CCSS.4.NBT.A.1

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Ones

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The rightmost place value in a number, representing single units (e.g., in 23, the '3' is in the ones place).

Tags

CCSS.4.NBT.A.1

CCSS.4.NBT.A.2

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Tens

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The place value to the left of the ones place, representing groups of ten (e.g., in 23, the '2' is in the tens place, so it stands for 20).

Tags

CCSS.4.NBT.A.1

CCSS.4.NBT.A.2

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Multiply

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To add a number to itself a certain number of times (e.g., 4 × 3 means adding 4 three times, or 4 + 4 + 4 = 12).

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Partial Products

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The result of multiplying each place value separately before adding them together. For example, when multiplying 23 × 4, we find the partial products by multiplying 20 × 4 and 3 × 4.

Tags

CCSS.4.NBT.B.5

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Product

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The answer to a multiplication problem (e.g., the product of 23 × 4 is 92).

Tags

CCSS.4.NBT.B.5

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Equation

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A mathematical statement showing that two expressions are equal, often used in multiplication (e.g., 23 × 4 = 92).

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Multiply in Parts

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Breaking down a larger number into its parts (tens and ones) to multiply each part separately and then add them together.

Tags

CCSS.4.NBT.B.5