Answer the following question in an array format
5X3=?
15
There array should show that there are 5 separate groups of 3
100
15X1=
Open array (expanded form)
The number should be split into "tens and ones"
10 5 (on one side)
10 1 ( on the other side)
= 165
100
42X10
The breaking apart method splits each of the numbers being multiplied into tens and ones. (expanded form)
example 42= 40 2 and 10 = 10 0
= 420
100
20X30=
600
100
45X44=
Using the lattice method the numbers are in standard form, each number of the 2 digit number is placed on 1 side of the lattice box. The other number is split and placed to the right of the lattice box.
= 1980
200
Draw an array for 7X16
The array should show that there are 7 groups of 16
200
29X15=
Open array(expanded form)
The number should be split into "tens and ones"
20 9 (on one side)
10 5 ( on the other side)
= 435
200
50X90=
The breaking apart method splits each of the numbers being multiplied into tens and ones. (expanded form)
example 50= 50 0 and 90 = 90 0
= 4500
200
85X98
8330
200
77 X 44
Using the lattice method the numbers are in standard form, each number of the 2 digit number is placed on 1 side of the lattice box. The other number is split and placed to the right of the lattice box.
= 3388
300
Draw an array for 12X12
The array should show that there are 12 groups of 12
300
18X55
Open array(expanded form)
The number should be split into "tens and ones"
10 8 (on one side)
50 5( on the other side)
= 990
300
142X22
The breaking apart method splits each of the numbers being multiplied into hundreds, tens and ones. (expanded form)
example 142= 100 40 2 and 22= 20 2
=3124
300
56X33
1848
300
33X11
Using the lattice method the numbers are in standard form, each number of the 2 digit number is placed on 1 side of the lattice box. The other number is split and placed to the right of the lattice box.
= 363
400
Draw an array for 15X14
The array should show that there are 15 groups of 14
400
68 X 56
Open array (expanded form)
The number should be split into "tens and ones"
60 8 (on one side)
50 6( on the other side)
= 3808
400
89X67
The breaking apart method splits each of the numbers being multiplied into tens and ones. (expanded form)
example 89= 80 9 and 67 = 60 7
= 5963
400
105X205
21525
400
79 X 54
Using the lattice method the numbers are in standard form, each number of the 2 digit number is placed on 1 side of the lattice box. The other number is split and placed to the right of the lattice box.
= 4266
500
Draw an array for 19X20
The array should show that there are 19 groups of 20
500
74 X 51
Open array (expanded form)
The number should be split into "tens and ones"
70 4 (on one side)
50 1 ( on the other side)
= 3774
500
99X66
The breaking apart method splits each of the numbers being multiplied into tens and ones. (expanded form)
example 99= 90 9 and 66 = 60 6
= 6534
500
455X343
156065
500
121X785
Using the lattice method the numbers are in standard form, each number of the 3 digit number is placed on 1 side of the lattice box. The other number is split and placed to the right of the lattice box.
= 94985