multiplicaciones basicas
Click here to load reader
-
Upload
estela-vargas -
Category
Technology
-
view
6.640 -
download
0
Transcript of multiplicaciones basicas
![Page 1: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/1.jpg)
E s t r a t e g ia s d e o b t e n c ió n d e
la s m u lt ip lic a c io n e s
b á s ic a s
![Page 2: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/2.jpg)
• C o n m u t a r M u c h a s v e c e s ,
e n c i e r t o s c á l c u l o s
c o n m u t a m o s m e n t a l m e n t e
l o s f a c t o r e s a n t e s d e
c o n t e s t a r ; p a r a s a b e r
c u á n t o e s 9 x 6 , p e n s a m o s e n 6 x 9 a n t e s d e r e s p o n d e r c o n
s e g u r i d a d .
![Page 3: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/3.jpg)
• A d ic ió n d e l m u lt ip lic a n d o A p o y á n d o s e e n
u n a m u l t i p l i c a c i ó n p o r u n d e t e r m i n a d o n ú m e r o , e s p o s i b l e o b t e n e r e l r e s u l t a d o d e m u l t i p l i c a r p o r e l s i g u i e n t e n ú m e r o , a ñ a d i e n d o e l m u l t i p l i c a n d o .
P o r e j e m p l o : 6 x 8 = 5x 8 + 8 =
= 40+ 8 = 48
![Page 4: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/4.jpg)
• Mitades
E s t a e s t r a t e g i a p u e d e a p l i c a r s e d e 8 a 4, d e 4 a 2, d e 6 a 3 y d e 10 a 5.
P o r e j e m p l o : 10x 3= 30 e n t o n c e s 5x 3= 30: 2 = 15
![Page 5: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/5.jpg)
• Sustracción del multiplicando
E s t a e s t r a t e g i a e s p a r t i c u l a r m e n t e a p l i c a b l e a l a s m u l t i p l i c a c i o n es p o r 9 , a p a r t i r d e l a s m u l t i p l i c a c i o n es p o r 10.
P o r e j e m p l o : 9 x 7 = 10x 7 - 7 =
= 7 0- 7 = 6 3
![Page 6: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/6.jpg)
• Multiplicaciones por diez
Añadir un cero, a t o d o s r e s u l t a f á c i l l a m u l t i p l i c a c i ó n p o r 10 y e n g e n e r a l l a m a y o r í a d e l a s p e r s o n a s l o u t i l i z a c o m o u n t r u c o - a ñ a d i r u n c e r o a l o t r o f a c t o r s i n p o d e r e x p l i c a r p o r q u é o c u r r e . P o r e j . 12x 10= 120
![Page 7: multiplicaciones basicas](https://reader037.fdocuments.ec/reader037/viewer/2022092912/559f57c41a28ab00088b47ec/html5/thumbnails/7.jpg)
P a r t i c i p a n t e s : E s t e l a B . V a r g a s —
L i l i a n a T o r r e s
P r o f e s o r a d o e n E B 1 y 2 N i v e l
s u p e r i o r
Á r e a : M a t e m á t i c a
E l m o t i v o p o r e l c u a l r e a l i z a m o s
e s t a p r e s e n t a c i ó n f u e p a r a c r e a r
u n s o p o r t e v i s u a l q u e p u e d a s e r
u t i l i z a d o e n u n a j o r n a d a d e
c a p a c i t a c i ó n c o n d o c e n t e s d e E G B 1y
2.