Lattice Multiplication Practice Template Page 2
ADVERTISEMENT
1
2Name
Date
3–14
Lattice Multiplication Practice
5
8
Use a lattice multiplication grid to multiply 4
85.
4
First, make your lattice. The factor 4 has one digit. The factor
85 has two digits. So, make your lattice one-by-two. Label the
5
8
sides with the factors, as shown.
4
Next, draw a diagonal in each square.
Now you are ready to start multiplying. Begin at the
8
5
right: 4
5
20. Write 20 in the right-hand square. Write
3
2
2 above the diagonal. Write 0 below the diagonal. Then
4
2
0
multiply 4
8
32. Write 32 in the next square.
The next step is to add the numbers in the diagonals and
5
8
write the sums around the lattice.
3
2
3
4
2
0
Finally, read the product. Start at the left and read down
4
0
and across the bottom: 340. So, 4
85
340.
Use lattice multiplication to find each product. Use
a separate sheet of paper if necessary.
5
35
9
64
7
53
1.
2.
3.
3
3
5
6
4
5
3
2
1
2
5
3
1
5
5
9
3
7
5
4
6
5
1
5
7
7
7
6
1
5
2
99
6
47
3
75
4.
5.
6.
9
9
7
5
4
7
1
1
2
1
2
4
1
2
2
6
2
3
8
8
4
2
1
5
9
2
8
8
2
5
Explain You filled in the squares of your lattices with two-digit numbers. What should
7.
you do if you have a one-digit number to write in a square of a lattice? Try 2
36.
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education