multipling x 1000
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Multipling x 1000. Multiplying x 1000. If we have : 1000 +1000+1000= ……… . = 1000 x 3 1000x4=1000+ ……… + ……… + ……… = ……… By the same way: 34x1000=34000. 3000. 1000. 1000. 1000. 4000. complete:. 8000. 8. 8x1000=1000x …… = ……… - PowerPoint PPT PresentationTRANSCRIPT
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Multipling x 1000Multipling x 1000Multipling x 1000Multipling x 1000
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Multiplying x 1000If we have : 1000 +1000+1000=………. = 1000 x
31000x4=1000+………+………+………
=………
By the same way: 34x1000=34000
3000
1000 1000 1000
4000
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complete:
1. 8x1000=1000x……=………
2. ……x1000=1000x……=70003. 2x3x1000=…….x1000=………
4. 3x……x1000=……x1000=90005. 5x……x1000=1000x……=35000
8
7 7
6 60003 97 35
8000
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Complete:
1. 20x40=100x……=………
2. 30x50=…….x100=………
3. 6x200=……x100=………
4. ……x100=…….x1000=90005. ……x10=35x100=………
8 80015 150012 1200
90 9
350
3500
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As you know ,one kilogram=1000
grams .complete
1. 3 kilograms=………grams because 3x1000=………
2. 14 kilograms=………grams because 14x1000=…………
30003000
140001400
0
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Multiplying a 2-digit Multiplying a 2-digit number by a 1-digit number by a 1-digit
numbernumber
Multiplying a 2-digit Multiplying a 2-digit number by a 1-digit number by a 1-digit
numbernumber
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Example :
6 2 3 4X 3
11
2071 8129+16+1
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Note:The vertical product = the
horizontal product .
6234 x 3 =
20718 121 9+11 6+1
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MultiplyMultiply :
2 3 5 6
X 4
9 4 2 4
5 4 2 3
X 8
4 3 3 8 4
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Find the product:
325 x 4 = ………
452 x 5 = ………
783 x 2 = ………
1235 x 3 = ………
1432 x 6 = ………
1300
2260
1566
3705
8592
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Unit TwoUnit TwoUnit TwoUnit Two
DivisDivisionion
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Finding the quotient•Ahmed has 10 rabbits. He
wants to put 2 rabbits in each box.
How many boxes does he need ?
We can divide to find how many We can divide to find how many boxes he needs :boxes he needs :
10 10 ÷÷ 2 2 == 5 5
divisordivisor
dividenddividend
quotientquotient
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Note that.. There are three ways to express the
division operation.For example :
To divide 12 by 4 , you can write :
12 12 ÷÷ 4 4 == 3 3
44 1212
33
oror 44
1212= 33
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Exercises.. 1. 42 ÷ 6 = ……… (2 , 4 , 6 or 7)
2. 20 ÷ 5 = ……… (4 , 5 , 15 or
25)
3. 56 ÷ 7 = ……… (5 , 6 , 7 or 8)
4. 9 ÷ 9 = ……… (9 , 1 , 0 or 18)
5. (12 ÷ 3) + 1 = ……… (4 , 5 , 3 or 10)