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# Multi digit multiplication

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### Multi digit multiplication

1. 1. <ul><li>BELL RINGER </li></ul><ul><li>87 – 38 = </li></ul><ul><li>398 </li></ul><ul><li>-235 </li></ul><ul><li>3. Name three common denominators of 1/3 and 1/2. </li></ul><ul><li>Mercury is 58 million kilometers from the sun. Earth is 150 million kilometers from the sun. How much farther from the sun is Earth? </li></ul>49 163 6, 12, 18, 24 ... 92 million kilometers
2. 2. Essential Question When was the last time you used multiplication outside of school?
3. 3. STANDARD M6N1. M7N1. M8N1. Students will understand the meaning of the four arithmetic operations as related to positive rational numbers and will use these concepts to solve problems.
4. 4. MULTI-DIGIT MULTIPLICATION
5. 5. 373 875 x Start with the ones. Do a 'SPRAY'. Multiply and &quot;CARRY&quot; - Just like addition! 5 1 6 3 18 Now do the tens- Use a 'SPRAY'! First, we must put a place holder under the ones. 0 Erase your &quot;carried&quot; numbers so you dont get confused. 1 2 1 5 26 Now let's do the hundreds using a &quot;spray&quot;. Erase your &quot;carried&quot; numbers so you dont get confused! We must put place holders under the ones and tens. 0 0 4 2 8 5 29 Now add! + 5 7 3 1 6 1 2 1 3
6. 6. 554 328 x Start with the ones. Do a 'SPRAY'. Multiply and &quot;CARRY&quot; - Just like addition! 2 3 3 4 44 Now do the tens- Use a 'SPRAY'! First, we must put a place holder under the ones. 0 Erase your &quot;carried&quot; numbers so you dont get confused. 8 0 1 11 Now let's do the hundreds using a &quot;spray&quot;. Erase your &quot;carried&quot; numbers so you dont get confused! We must put place holders under the ones and tens. 0 0 2 1 6 1 16 Now add! + 2 1 7 1 1 8 1 1
7. 7. 369 225 x Start with the ones. Do a 'SPRAY'. Multiply and &quot;CARRY&quot; - Just like addition! 5 4 4 3 18 Now do the tens- Use a 'SPRAY'! First, we must put a place holder under the ones. 0 Erase your &quot;carried&quot; numbers so you dont get confused. 8 3 1 7 Now let's do the hundreds using a &quot;spray&quot;. Erase your &quot;carried&quot; numbers so you dont get confused! We must put place holders under the ones and tens. 0 0 8 1 3 1 7 Now add! + 5 2 0 3 1 8 1 1 2
8. 8. Now take 5 minutes to do the problems on your worksheet.
9. 9. 62 48 x 6 1 49 0 8 24 + 6 7 1 9 2
10. 10. 643 25 x 5 1 1 0 6 8 2 32 12 + 5 7 0 1 6 1
11. 11. STANDARD M6N1. M7N1. M8N1. Students will understand the meaning of the four arithmetic operations as related to positive rational numbers and will use these concepts to solve problems.
12. 12. Essential Question When was the last time you used multiplication outside of school?