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Lattice multiplication (327 x 28). 3. 2. 7. 2. 8. Lattice multiplication (327 x 28). 3. 2. 7. 2. 8. Lattice multiplication (327 x 28). 3. 2. 7. 2. 8. Lattice multiplication (327 x 28). 3. 2. 7. 2. 8. Lattice multiplication (327 x 28). 3. 2. 7. 2. 8. - PowerPoint PPT Presentation
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Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
3 2 7
2
8
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
Now add the diagonals
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
6
Now add the diagonals
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
6
6+5+4 = 15
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
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6
65
1
1+1+4+1+4=11
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
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2
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1
6
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6
65
1
1
1
1+6+2=9
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Now read off the digits according to the diagonal place value columns
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
6 is in the ones column5 in the tens1 in the hundreds9 in the thousands0 in the ten-thousands
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
6 is in the ones column5 in the tens1 in the hundreds9 in the thousands0 in the ten-thousands
So 327 x 28 = 9156
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Now calculate 327 x 28 by another method.Can you see how your method is similar to this one?
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Did you write out all 6 partial products separately? (like this)
327x 28 56 1602400 140 40060009156
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Did you write out all 6 partial products separately? (like this) Or did you use a condensed version? (like this)
327x 28 56 1602400 140 40060009156
327x 28261665409156
Lattice multiplication (327 x 28)Lattice multiplication (327 x 28)
0
6
0
4
1
4
2
4
1
6
5
6
65
1
1
1
9
0
Did you write out all 6 partial products separately? (like this) Or did you use a condensed version? (like this) Challenge: see if you can find each of the 6 partial products in the lattice multiplication!
327x 28 56 1602400 140 40060009156
327x 28261665409156