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Use Area Models to Multiply 2 x 2 Digits micro-lesson

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Area models are a great way to solve multiplication problems. With larger numbers, you're going to need to use four boxes in your area model and break up each of the two factors. 13 is the same as 10 + 3 and 19 is the same as 10 + 9. Now, you multiply to find four partial products. 10 x 10 is 100, 10 x 9 is 90, 10 x 3 is 30, and 3 x 9 is 27. Our final step in the area model is you add up all of your personal products. So, we'll add 100, 90 30, and 27 for a total of 247. You're going to take your 32 and break it up into 30 + 2 and you're going to take 45 and break that up into 40 + 5. Now, you multiply to get a partial product for each box. The final step is to add up all of your partial products and you come out with 1,440. Area models are a great way to multiply two digits by two digits.

Kids earn more screen time by answering fun educational questions.

1) 4
2) 3
3) 2
4) 1

1) 4
2) 3
3) 2
4) 1

1) 4
2) 3
3) 2
4) 1

1) 4
2) 3
3) 2
4) 1

1) 4
2) 3
3) 2
4) 1

1) 4
2) 6
3) 2
4) 1

1) 90
2) 9
3) 0.9
4) 900

1) 2
2) 9
3) 0.5
4) 90

1) 247
2) 100
3) 90
4) 27

1) 169
2) 170
3) 144
4) 150

1) 522
2) 504
3) 493
4) 540

1) 3192
2) 666
3) 450
4) 2192

1) 1080
2) 1065
3) 1008
4) 1572

1) 3348
2) 3312
3) 3438
4) 3256

1) 3978
2) 3983
3) 3900
4) 3798

1) 1806
2) 4342
3) 1608
4) 1860

1) 6348
2) 6438
3) 5218
4) 6992
• How can you break up the factors 13 and 19?

1) (10 + 3) x (10 + 9)
2) (10 x 3) + (10 x 9)
3) (10 + 13) x (10 + 19)
4) (10 x 19)+ (10 x 3)
• What is another way to show 23 x 35?

1) (20 + 3) x (30 + 5)
2) (20 x 3) + (30 x 5)
3) (20 + 3) x (30 + 5)
4) (20 + 3) + (30 + 5)
• How would you break apart 76 and 42 for your area model?

1) (70 + 6) x (40 + 2)
2) (70 x 6) + (40 x 2)
3) (70 + 6) x (40 + 2)
4) (70 + 6) + (40 + 2)
• What are the four partial products you should add together to find the total product for 68 x 16?

1) 600 + 360 + 80 + 48
2) 6,000 + 80 + 360 + 48
3) 60 + 80 + 360 + 48
4) 600 + 80 + 36 + 48

1) 70 + 8
2) 70 x 8
3) 78 + 10
4) 70 + 80
• What is the final step to solve 26 x 61, using this area model?

1) Add 1,200 + 360 + 20 + 1
2) Add 120 + 20 + 360 + 1
3) Add 12 + 2 + 36 + 6
4) Add 1,200 + 360 + 20
• Which property is used to break up the factors by place value?

1) Distributive property
2) Commutative Property
3) Associative Property
4) The Multiplication Property of Zero
• What is the final step to solve this problem?

1) Add 1,600 + 120 + 80 + 6
2) Multiply 1,600 x 120 x 80 x 6
4) Add 1,600 + 80 + 120

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