Lattice Multiplication

Lattice Multiplication

Objective: I can use open area, distributive or lattice method to find the product of up to four-digit by one-digit multiplication.

​Please Complete 20 Minutes of ST MATh

​Remember that your teacher can see whether or not you logged on and completed this task.

​Math Task for 9/28

​How many days are in 32 weeks? Explain how you came to your answer.

• Solve the problem on a scratch piece of paper at home. If you are at school use your white board to solve.

• ​On the next slide you will type in your answer to the math task. If you are at home please take a picture of your work and explanation and email it to your teacher.

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How many days are in 32 weeks?  Explain how you came to your answer.

Lattice Multiplication Method

​On the next slide you will watch a video about the lattice multiplication method.

​* Please watch the video before trying the practice problems.

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Let's Practice

​On the next few slides we are going to practice lattice multiplication together. You will still need to type in your answer.

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Solve this problem

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Solve this question.

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Solve this question

Assignment

​If you are at home you will do the assignment here. Be sure to take a picture of your work and submit it to your teacher.

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​If you are at school you can choose to solve the problems on the worksheet. Or solve the problems on a separate piece of paper and type your answers here. Please turn in your paper to your teacher.

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​You may use the distributive property, open area method or lattice method to solve each problem. Show your

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33 x 3

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89 x 4

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59 x 5

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53 x 8

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70 x 4

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84 x 6