Everyday Math Grade 4 – Lesson 3.10 Open Sentences

Everyday Math Grade 4 – Lesson 3.10 Open Sentences
Copyright © 2010 Kelly Mott

Lesson Components: Part 1: Math Boxes 3.10 Page 72
Part 2: PowerPoint Lesson Part 3: Math Journal Pages 70-71 Part 4: Additional Sheets Copyright © 2011 Kelly Mott

Everyday Math Grade 4 – Lesson 3.10 Open Sentences

Number Sentences A number sentence is a short way of writing a mathematical expression. EXAMPLE I could write: eight plus six equals fourteen or I could write it this way: = 14 Copyright © 2010 Kelly Mott

A number sentence can be TRUE. EXAMPLE 5 x 2 = 10
Number Sentences A number sentence can be TRUE. EXAMPLE 5 x 2 = 10 Copyright © 2010 Kelly Mott

A number sentence can be FALSE. EXAMPLE 6 - 2 = 6
Number Sentences A number sentence can be FALSE. EXAMPLE = 6 Copyright © 2010 Kelly Mott

25 + 3 = 29 Circle: True or False
Is it TRUE or FALSE? = 29 Circle: True or False > 51 Circle: True or False Copyright © 2010 Kelly Mott

Some number sentences use PARENTHESES. EXAMPLE (6 – 2) + 4 = 8

To solve these, you must do what’s in the PARENTHESES first.
Number Sentences To solve these, you must do what’s in the PARENTHESES first. (6 – 2) + 4 = 8 Copyright © 2010 Kelly Mott

Number Sentences (16 - 6) x 2 = ______________

C. (8 + 2) x 5 = ______________
Number Sentences C. (8 + 2) x 5 = ______________ D (2 x 5) = ______________ Copyright © 2010 Kelly Mott

Sometimes you have to tell if a number sentence is TRUE or FALSE.
Number Sentences Sometimes you have to tell if a number sentence is TRUE or FALSE. Copyright © 2010 Kelly Mott

Number Sentences (2 x 5) + 10 = 25 True or False
B = 4 + (3 x 2) True or False Copyright © 2010 Kelly Mott

16 - 2 x 4 = 8 MAKE THE SENTENCE TRUE CHECK LIST:
___ Circle the relationship symbol (= < >) ___ Start with the side that has numbers and operations. ___ Try parentheses around the first set of numbers and operation. ___ Do the math. ___ See if it’s true. ___ If not true, put parentheses around the next set of numbers and try again. Copyright © 2010 Kelly Mott

5 x 7 - 5 = 30 MAKE THE SENTENCE TRUE CHECK LIST:

8 x 2 + 1 = 24 MAKE THE SENTENCE TRUE CHECK LIST:

12 ÷ 4 x 3 = 9 MAKE THE SENTENCE TRUE CHECK LIST:

A number sentence is open if it has a VARIABLE. EXAMPLE 12 + x = 15
Number Sentences A number sentence is open if it has a VARIABLE. EXAMPLE 12 + x = 15 Copyright © 2010 Kelly Mott

If an open sentences says to add, we subtract to find the answer.
Number Sentences If an open sentences says to add, we subtract to find the answer. Copyright © 2010 Kelly Mott

Open Number Sentences 51 = n + 29 n = _______ 12 + b = 55 b = ________

Open Number Sentences 33 = s + 24 s = _______ 67 + y = 102

Open Number Sentences 17 = z - 8 z = _______ t - 9 = 14 t = ________

Open Number Sentences 41 = k - 18 k = _______ f - 7 = 23 f = ________

Open Number Sentences 5 = 18 - k k = _______ 41 - f = 23 f = ________

Open Number Sentences 16 = 38 - k k = _______ 17- f = 11 f = ________

Open Number Sentences 18 = 2 * x x = _______ 4 * w = 24 w =________

Open Number Sentences 77 = 7 * y y = _______ 5 * h = 60 h =________

Open Number Sentences 7 = 21/x x = _______ 18/w= 9 w =________

Open Number Sentences 6 = 24/s s = _______ 36/f= 12 f =________

Open Number Sentences x = 7 * 3 x = _______ 8 * 8 = z z =________

Open Number Sentences y = 21/3 y = _______ 14/2= t t =________

Everyday Math Grade 4 – Lesson 3.10 Open Sentences

Similar presentations

Presentation on theme: "Everyday Math Grade 4 – Lesson 3.10 Open Sentences"— Presentation transcript:

Similar presentations

About project

Feedback

Log in

Auth with social network:

Everyday Math Grade 4 – Lesson 3.10 Open Sentences

Similar presentations

Presentation on theme: "Everyday Math Grade 4 – Lesson 3.10 Open Sentences"— Presentation transcript:

Similar presentations

About project

Feedback