Adding Rational Numbers with the Same Signs

What is a rational number?

• A number that can be written as a fraction with a non-zero denominator.

• A number that cannot be written as a fraction.

• A number that is always positive.

• A number that is always negative.

When adding two rational numbers with the same sign, what is the sign of the sum?

• The same as the sign of the addends.

• Always positive.

• Always negative.

• The opposite of the sign of the addends.

Tags

CCSS.7.NS.A.1C

How do you add 2.5 and 1.5 in decimal form?

• By subtracting the smaller number from the larger number.

• By stacking the numbers and adding them directly.

• By multiplying them.

• By converting them to fractions first.

Tags

CCSS.5.NBT.B.7

What is the sum of 2.5 and 1.5?

• 5

• 3

• 4

• 4.5

Tags

CCSS.5.NBT.B.7

What is the common denominator for adding 1/2 and 3/4?

• 8

• 2

• 4

• 6

What is the equivalent fraction of -1/2 with a denominator of 4?

• -4/4

• -2/4

• -3/4

• -1/4

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

CCSS.3.NF.A.3A

What is the simplified form of -5/4?

• -1 3/4

• -2

• -1 1/4

• -1 1/2

When adding rational numbers with different signs, what should you do?

• Find the difference and use the sign of the greater absolute value.

• Add them directly.

• Multiply them.

• Convert them to decimals first.

Tags

CCSS.7.NS.A.1C

What is the result of adding -2.5 and -3.5?

• -7

• -5

• -6

• -6.5

Tags

CCSS.7.NS.A.1C

What will be discussed in the next video?

• Adding rational numbers with different signs.

• Dividing rational numbers.

• Subtracting rational numbers.

• Multiplying rational numbers.

Tags

CCSS.7.NS.A.1C