Show:
Multiply Multiples of 10
Area Models
Partial Products
Estimating & Compatible Numbers
Distributive Property & Standard Algorithm
100

What is the answer to 60 x 90? Why? 

5,400 because the basic fact is 6 x 9 = 54 and there are two zeros. 

100

Where do you put each of these numbers in an area model 20 x 34?  Draw your answer in your notebook. 

Teacher will decide.  20 on the side and 30 + 4 on the top.

100

What are the steps of using partial products?

Step 1: multiply by the ones 

Step 2: Multiply by the tens

Step 3: add them all together

100

Estimate the numbers using rounding 

   27 x 31 

  30 x 30 

100

Break apart the two numbers and show the first step of the distributive property 


24 x 52 

(20 + 4) x (50 + 2) 

200
Fill in the blank:  ___ x 20 = 1,600 

80

200

Draw and solve an area model for 40 x 37. 

Teacher will look at the answer

200

What are the partial products for 23 x 14? Solve in your notebook.

      23 

x    14

      12

      80

      30 

     200 

     322

200

Estimate and solve    46 x 29 

50 x 30 = 1,500 

200

Solve using the distributive property in your notebook.

 19 x 17 

(___ + ___) x (___ + ___) 

(___ + ___) x ___ + (___ + ___) x ___ 

(___ x ___) + (___ x ___) + (___ x ___) + (___ x ___) 

  ______ + _____ + _____ + _____ 

             ____________

(__10_ + _9__) x (_10__ + _7__) 

(__10_ + _9__) x __10_ + (_10__ + _9__) x _7__ 

(_10__ x _10__) + (_10__ x __9_) + (_10__ x __7_) + (_9__ x _7__) 

  ___100___ + __90___ + ___70__ + __63___ 

             _____323_______

300

     33 

x   20

Answer: 

  660. Multiply 33 x 2 = 66 then add a zero 

300
Draw an area model for 26 x 19.  You do not have to solve 

Teacher will decide.

300

What are the partial products for 19 x 52? Solve in your notebook 

      19 

x    52

      18 

      20 

     450

     500 

     988

300
What are the compatible numbers for 24 x 38 

25 x 40 

300
Solve using the standard algorithm 


  27 

x 12 

   1

   27 

x 12 

   54

  270

 324

400

88 x 30 = ___

2,640 because 88 x 3 = 264 and then you add a zero

400

Draw and solve an area model for 16 x 28

Teacher will decide 

400

What are the partial products for 26 x 53? Solve in your notebook 

     26 

 x  53

     18 

     60 

    300 

 1,000

1,378 

400

71  x 67 =  4,757

Estimate, then solve.  Then, tell me is it reasonable or not reasonable 

70 x 70 = 4,900 

Reasonable

400

Solve using the standard algorithm


  16 x 11 

   16 

x 11

   16 

  160 

  176

500

12 x 30 = ___

360 because 12 x 3 is 36 and then you add a zero

500
Draw and solve an area model for 42 x 52.

Teacher will decide. 

500

What are the partial products for 24 x 33? Solve in your notebook  


     24 

x   33

    12 

    60 

   120 

    600 

792

500

Find the compatible numbers and then solve 

98 x 54 

100 x 55 = 5,500

500

What are the steps to solving a problem using the standard algorithm

1. Multiply by the bottom ones place 

2. Add a zero 

3. Multiply by the bottom tens place 

4.  Add them all together