Exploring Operations with Rational Numbers

This video tutorial covers the fundamental operations with rational numbers, including addition, subtraction, multiplication, and division. It explains the rules for handling integers, fractions, and decimals, and introduces the concept of absolute value. The tutorial also discusses the properties of square roots and how to work with them in mathematical expressions.

What is the result of adding -13 and -22?

• 35

• 9

• -9

• -35

Tags

CCSS.7.NS.A.1C

How do you handle different signs when adding 29 and -54?

• Add and change the sign

• Subtract and change the sign

• Subtract and keep the sign of the larger number

• Add and keep the sign

Tags

CCSS.7.NS.A.1C

What is the common denominator for the fractions 2/3 and 7/8?

• 3

• 16

• 24

• 8

When adding or subtracting decimals, what is the first step?

• Find a common denominator

• Round to the nearest whole number

• Line up the decimal points

• Convert to fractions

Tags

CCSS.5.NBT.B.7

What is the absolute value of -3?

• 3

• -3

• 1

• 0

Tags

CCSS.6.NS.C.7C

What does the absolute value represent?

• The number itself

• The reciprocal of the number

• The negative of the number

• The distance from zero

Tags

CCSS.6.NS.C.7C

What is the result of multiplying -6 by -6?

• 6

• -36

• 36

• 0

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If you have a negative number inside parentheses with an even exponent, what will the result be?

• Positive

• Negative

• Undefined

• Zero

Tags

CCSS.8.EE.A.1

What is the result of dividing -5/6 by 1/2?

• -5/3

• 5/3

• 10/6

• -10/6

Tags

CCSS.7.NS.A.2B

What is the square root of 100?

• 10 or -10

• 0

• 10

• -10

Tags

CCSS.8.EE.A.2