Násobení celých čísel Lesson Slides: 7 Slides (Grade 5)

7 Slides • 7 Questions

1

Násobení celých čísel

2

Co umíme

$\left(+3\right)\cdot\left(+6\right)=+18$
$+\cdot+=+$

3

Co je nové

$+\cdot-=-$
$\left(+5\right)\cdot\left(-6\right)=-30$

4

$-\cdot+=-$
$\left(-8\right)\cdot\left(+5\right)=-40$

5

$-\cdot-=+$
$\left(-9\right)\cdot\left(-3\right)=+27$

6

Do sešitu

$+\cdot+=+$
$+\cdot-=-$
$-\cdot+=-$
$-\cdot-=+$

7

Fill in the Blanks

$\left(+6\right)\cdot\left(+9\right)=$

Type answer...

8

Fill in the Blanks

$\left(-8\right)\cdot\left(+6\right)=$

Type answer...

9

Fill in the Blanks

$\left(+9\right)\cdot\left(-4\right)$

Type answer...

10

Fill in the Blanks

$\left(-5\right)\cdot\left(-7\right)=$

Type answer...

11

Závorky nejsou vždy úplně nutné

$-3\cdot5=-15$
$4\cdot\left(-8\right)=-32$
$-5\cdot\left(-6\right)=-30$

12

Fill in the Blanks

$-8\cdot7=$

Type answer...

13

Fill in the Blanks

$-9\cdot\left(-7\right)=$

Type answer...

14

Fill in the Blanks

$12\cdot\left(-3\right)=$

Type answer...

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