Bell Work

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# Bell Work - PowerPoint PPT Presentation

Bell Work. X = 6 X = 70 X = 10 X = -6. X - 7 = -1 X - 4 = 66 8 = X - 2 -8 = X - 2. Modeling the equation using a bar diagram. 253 Competitors. Use the model to write and solve an equation. X + 134 = 253 or 134 + x = 253. X = 119 boys. Use the model to write and solve an equation.

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## PowerPoint Slideshow about 'Bell Work' - lillian-beasley

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Presentation Transcript
Bell Work
• X = 6
• X = 70
• X = 10
• X = -6
• X - 7 = -1
• X - 4 = 66
• 8 = X - 2
• -8 = X - 2

Use the model to write and solve an equation

X + 134 = 253

or

134 + x = 253

X = 119 boys

Use the model to write and solve an equation

X + 119 = 134

X = 15 more girls

A used book costs \$17 less than the same book new. The used book costs \$9. Use a bar diagram to write and solve an equation to find out how much the new book cost.

?

X – 9 = 17

New book

Used book

X = \$26 for a new book

9

17

Use a bar diagram to write and solve an equation to find out how many hits he got in the second game. .

X – 1 = 5

X = 4 hits in the second game