U2 l4 math multiplying three digit numbers by two digit numbers and dividing multiples of 10-...
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Transcript of U2 l4 math multiplying three digit numbers by two digit numbers and dividing multiples of 10-...
I’ll give you a paper with 12 questions on
it.
1st- Do the questions quietly by yourself.
2nd- Look around the room. I have put
the answers on the wall.
Walk around with a partner and match
the questions with the letter for each
answer.
23
x 27
20 7
20
3
400
400
60
60140 140
21
21+____
621
Try this new method on the worksheet.
321
x 21
300 20 1
20
1
6000
6000
300
300400
400
20
20
+____
6741
20
201
1
Try the questions in your book on page #
24.
You can use the new method or the old
one to find your answers.
I need volunteers to come up front and
put their answers on the board.
Try the questions in your book on page #
25.
You can use the new method or the old
one to find your answers.
?
?
9 3 = 3
?
Multiplier
ProductMultiplicand
I have 10 choco pies…………..
And there are 2 hungry students………..
I have 20 bottle of Gatorade…………
And there are 10 thirsty
grandpas…………
Omar rowed his boat for a total of 50
miles (80 km) over the past 5 days, and
he rowed the same amount each day.
How many miles did Omar row his boat
each day?
Click on my face to
watch the video!
What is division?
How do we do division?
?
?
9 3 = 3
?
Divisor
QuotientDividend
What is this?!
15÷3 =5
dividend divisorquotient
Fifteen divided by three equals five
9 3 = 3
Nine divided by three
equals three.
12 6 = 2
Twelve divided by
six equals two.
20 5 = 4Twenty divided by five
equals four.
100 5 = 20
One hundred divided by five
equals twenty.
60 20 = 3
Sixty divided by twenty equals
three.
4 2 = 2
Four divided by two equals two.
42 6 = 7
420 6 = 70
Let’s try something a little
different………..
What’s the quotient?
4200 6 =700
Let’s try something a little
different………..
What’s the quotient?
Look at this equation:
10÷5What is the quotient?
=2
Now, look at this equation:
100÷5What is the quotient?
=20
10÷5
100÷5
1,000÷5=
=20
=2
200
10÷5 =2
10 ÷50 =20
10 ÷50 =200 0
2
20
200
2000
3
30
300
3000
2
20
200
2000
6
60
600
6000
3
30
300
3000
Sometimes division problems look
different.
We can write division problems like this:
Seventy
five
divided
by three
equals?
Can anyone say this
equation?
How did you get your answer?
Let’s watch a video that will
help us remember the steps!
Click on the baby to
see the movie!
dividend
divisor
quotient
Sixty eight divided by two
equals thirty four
There are mistakes in the spelling, can
you find them?
1. seven thousand, five hundred fifty five.
2.Three thousand, seven hunded twenty eight.
3. Five thousand, nine hundred thirty four.
4. Three thousand three hundred and to.
5. Twelve thousand, two hundred ninety eight.
6. Eight thousand, five hundred fourteen.
7. Nineten thousand, fifty five.
8. Fifty two thousand, four hundred eighty.
9. Four thousand, nine hundred sx eight.
10. Twelve thousand five hundred twenty eight.
11. Twenty four thousand, for hundred eighty six.
12. Twenty nine thousand, seventy.
13. Two thousand, two hundred and fifty.
14. Seventeen thousand, two hundred seventy nine.
15. Thirty eight thoand, nine hundred eighty four.
1. seven thousand, five hundred fifty five.
2.Three thousand, seven hunded twenty eight.
3. Five thousand, nine hundred thirty four.
4. Three thousand three hundred and to.
5. Twelve thousand, two hundred ninety eight.
6. Eight thousand, five hundred fourteen.
7. Nineten thousand, fifty five.
8. Fifty two thousand, four hundred eighty.
9. Four thousand, nine hundred sx eight.
10. Twelve thousand five hundred twenty eight.
11. Twenty four thousand, for hundred eighty six.
12. Twenty nine thousand, seventy.
13. Two thousand, two hundred and fifty.
14. Seventeen thousand, two hundred seventy nine.
15. Thirty eight thoand, nine hundred eighty four.
