Adding & Subtracting Decimals with Models

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 0.5 is a decimal.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the answer directly below the other decimal points.

Tags

CCSS.6.NS.B.3

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the answer directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

What does the term 'model' mean in math?

Back

In math, a model is a visual representation of a problem or concept, often using shapes or diagrams to help understand relationships between numbers.

Front

What is the value of 0.27 - 0.09?

Back

0.27 - 0.09 = 0.18.

Tags

CCSS.5.NBT.B.7

Front

What is the value of 0.32 + 0.17?

Back

0.32 + 0.17 = 0.49.

Tags

CCSS.5.NBT.B.7

Front

What is the value of 0.50 + 0.23?

Back

0.50 + 0.23 = 0.73.

Tags

CCSS.5.NBT.B.7

Front

What is the value of 0.7 + 0.44?

Back

0.7 + 0.44 = 1.14.

Tags

CCSS.5.NBT.B.7

Front

How do you represent a shaded area in decimals?

Back

The shaded area can be represented by a decimal that indicates the portion of the whole that is shaded. For example, if 1.83 is shaded, it means 1.83 units of the total area.

Tags

CCSS.4.NF.C.6

Front

What is the importance of aligning decimal points?

Back

Aligning decimal points is crucial for accurate addition and subtraction of decimals, ensuring that each digit is in the correct place value.

Tags

CCSS.5.NBT.B.7