Solving Equations Using Related Equations

Solving Equations Using Related Equations

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I can...

• Determine related equations of a given fact family.

• Solve mathematical problems by writing and solving equations in the form x + p = q.

Lesson Standards

• 6.AF.5

  Solve equations of the form x + p = q, x - p = q, px = q, and x/p = q fluently for cases in which p, q and x are all nonnegative rational numbers. Represent real-world problems using equations of these forms and solve such problems.

Use words to write this equation

2n = 24

Fact Families

Multiple Select

Which equation is not a part of the fact family for

 $6\cdot7=42$  

•  $7\cdot6=42$  

•  $42\cdot6=7$  

•  $42\div6=7$  

•  $42\div7=6$  

Multiple Select

Choose all of the related equations for the equation 14 + 9 = 23

• 14+23=9

• 23+9=14

• 9+14=23

• 9-23=14

• 23-9=14

What about algebra!?

Multiple Select

Choose all of the related facts for x-12 = 18

• 12-x = 18

• 12 +18 =x

• 18 +12 = x

• x-18 =12

Open Ended

What related fact would isolate the variable for 15 + z = 32 ?

32 - 15 = z

Multiple Select

Choose all of the related equations to the equation 8 x 7 = 56

• 7 x 8 = 56

• $56\div8=7$

• $56\ \div7=8$

• 56 x 7 = 8

Open Ended

Isolate the variable for the equation 45 x b = 7

Poll

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