Transcript 2 Digit Multiplication

How do I
multiply
multi-digit
problems?
M: multiply
C: carry
M: multiply
A: add
1
25
x3
M.C.M.A.
75
1) First you “spray”
the ones place
2) Then you multiply
3) Next, you carry any
number you need to
4) Then you “spray”
the tens place
5) Then you
multiply again and
add any number you
carried!!!
2
56
x4
M.C.M.A.
224
1) First you “spray”
the ones place
2) Then you multiply
3) Next, you carry any
number you need to
4) Then you “spray”
the tens place
5) Then you
multiply again and
add any number you
carried!!!
1
49
x2
M.C.M.A.
98
1) First you “spray”
the ones place
2) Then you multiply
3) Next, you carry any
number you need to
4) Then you “spray”
the tens place
5) Then you
multiply again and
add any number you
carried!!!
4
15
x9
13 5
M.C.M.A.
1) First you “spray”
the ones place
2) Then you multiply
3) Next, you carry any
number you need to
4) Then you “spray”
the tens place
5) Then you
multiply again and
add any number you
carried!!!
70
x3
M.C.M.A.
21 0
1) First you “spray”
the ones place
2) Then you multiply
3) Next, you carry any
number you need to
4) Then you “spray”
the tens place
5) Then you
multiply again and
add any number you
carried!!!
We can do
bigger
numbers
too!!!
1
125
x 3
3 75
M.C.M.A.
1) First you “spray” the
ones place and multiply
2) Next, you carry any
number you need to
3) Then you “spray” the
tens place and multiply
4) Then you add any
number you carried!!!
5) Then you repeat
“spray” and M.C.M.A.
with the hundreds place!
4
318
x 5
1,5 9 0
M.C.M.A.
1) First you “spray” the
ones place and multiply
2) Next, you carry any
number you need to
3) Then you “spray” the
tens place and multiply
4) Then you add any
number you carried!!!
5) Then you repeat
“spray” and M.C.M.A.
with the hundreds place!
1
1235
x
2
2, 4 7 0
1) First you “spray” the
ones place and multiply
2) Next, you carry any
number you need to
3) Then you “spray” the
tens place and multiply
4) Then you add any
number you carried!!!
5) Then you repeat “spray”
and M.C.M.A. with the
hundreds & thousands place!
Time for
YOU to
practice!!!
2
17
x3
51
&
M.C.M.A.
3
25
x7
17 5
&
M.C.M.A.
91
x2
18 2
&
M.C.M.A.
1
143
x 3
4 29
&
M.C.M.A.
1
621
x 9
5,5 8 9
&
M.C.M.A.
What do you
think a “1
Emerging”
would be on this
standard?
What do you
think a “2
progressing”
would be on this
standard?
What do you
think a “3
Meets” would be
on this
standard?
What do you
think a “4
Exceeds” would
be on this
standard?
Now it’s time
for you to
practice the
standard
solo!