1. September 25, 2017 Multiple Digit Multiplication Day Warm Up
Lesson: <note packet>
What do we know.
Rules, Rules, Rules.
Put it together.
Do it again.
Warm Up
Estimate & Simplify.
76 x 3
89 x 2
57 x 4
43 x 9
Answers: 228, 178, 228, 387

2. What do we know? We can multiply by 1 digit numbers.
Multiplying by multi-digit numbers is just multiplying by one digit over and over.
This is a repeating pattern we can use to solve multiplication problems.

3. Rules, Rules, Rules!
Step 1 Use the bottom right digit to multiply the digits in the top. Step 2 Move over to the next digit to the left in the bottom to multiply. Add a zero or place holder to show the place change.
Step 3 Repeat step 2 until all digits in the bottom have been multiplied. Step 4 Add up all the products you created.

4. Put it together.

5. Do it again.
502 x 56
752 x 73
810 x 84
862 x 72
663 x 36
386 x 30
560 x 89
322 x 39