Break Apart
Use break apart to solve 7 x 9.
Answer = 63, Break apart will vary.
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4 x 6 x 5
120
7 x 8 = 8 + (6 +1)
False, 7 x 8 = 8 x (6+1)
There are 4 groups of 20 people. Each person walks 3 miles. How many total miles is that?
240 miles
Use break apart to solve 12 x 6.
Answer = 72. Break apart will vary.
Draw an array that matches 5 x 2.
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6 x 4 x 2
48
9 x 8 = (8x7) + (8x2)
True, they just broke apart the 9 into 7 and 2!
Mrs. Lierman has 3 boxes. Each box has 6 containers of colored pencils in it. Every container has 4 colored pencils in it. How many colored pencils are there in all?
72 colored pencils
Mrs. Lierman broke apart 6x7 into (6x3)+(6x4). What is another way to do it?
What equation matches this array?
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6 x 3 = 18
10 x 12 x 2
240
True or False : The order you multiply in does not matter. Provide an example.
True. Example :
9 x 6 = 54
6 x 9 = 54
There are 5 families of penguins in Antarctica. Each family has 5 groups of food. Every group of food has 4 fish in it. How many fish are there in total?
100 fish
Show me two different ways to break apart 8 x 9.
Answer = 72. Break apart will vary.
In an array, how do you know the order of the factors? What does each number mean?
The first factor is how many rows, and the second factor is how many in each row. (or how many columns)
5 x 4 x 7
140
8 x 2 x 4 can be multiplied in all of the following ways:
(8x2) x 4
(4+2) x 8
(2x4) + 4
False - (4+2) x8 and (2x4) + 4 are false because of the plus signs.
Mrs. Buss has 4 rows of desks. Each row has 6 desks in it. Every desk has 2 children sitting at it. How many children are there?
48 children
Show me three different ways to break apart 14 x 6.
Answer = 84. Break apart will vary.
What equation matches the array?
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4 x 6 = 24
7 x 9 x 2
126
True or False.
12 x 13 = 154
False, 156
Come up with a story problem for 3x6x2, and solve it.
Story problems will vary. The answer is 36.