Lesson 2.1 Language of Mathematics

What do you call a systematic way of communicating with other people by the use of sounds or conventional symbols?

• Communication

• Language

• Sentence

• Idea

“The laws of nature are written in the language of mathematics.” is said by a famous mathematician named

• Albert Einstein

• Galileo Galilei

• Godfrey Harold Hardy

• Paul Erdos

If I were taking away something from a larger group, which symbol would mean take away?

• +

• -

• =

• *

Tags

CCSS.2.OA.A.1

If 2 + 3 = 5, then we can say 3 + 2 = 5.

Is that correct?

• YES

• NO

Tags

CCSS.1.OA.B.3

This symbol means ...

• greater than
• less than
• equal to
• approximately equal to

Tags

CCSS.K.CC.C.6

CCSS.K.CC.C.7

This symbol means

• This set of numbers is finite
• This set of numbers is infinite
• to multiple by 8
• to raise to the 8th power

Simplify:

63 ÷ 7 - 3 ⋅ 2 + 4

• 7

• -9

• -1

• 3

Tags

CCSS.6.NS.B.2

Simplify:

[ (19 -5) ÷ 2] ⋅ 7

• 14

• 2

• 42

• 49

Tags

CCSS.6.EE.A.2

CCSS.6.EE.A.3

CCSS.6.NS.B.2

Simplify:

24 ÷ 4 ⋅ 2 + (3² - 1 + 6)

• 5

• 14

• 17

• 26

Tags

CCSS.6.EE.A.1

CCSS.6.EE.A.3

CCSS.6.NS.B.2

Write an algebraic expression for:
 35 decreased by a number

• 35+n
• 35-n
• n-35

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6