Question
Observe the following table and complete it
StatementObservation
(- 20) × (- 5) = 100Product is an integer
(- 15) × 17 = - 255Product is an integer
(- 30) × 12 = 
(- 15) × (- 23) = 
(- 14) × (- 13) = 
12 × (- 30) = 

Answer

The complete table is shown as below:
StatementObservation
(- 20) × (- 5) = 100Product is an integer
(- 15) × 17 = - 255Product is an integer
(- 30) × 12 = - 360Product is an integer
(- 15) × (- 23) = 345Product is an integer
(- 14) × (- 13) = 182Product is an integer
12 × (- 30) = - 360Product is an integer

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In Fig. $PQ, RS$ and $UT$ are parallel lines.
$i.$ If $c = 570$ and $\text{a}=\frac{\text{c}}{3}$, find the value of $d$.
$ii.$ If $c = 750$ and $\text{a} = \frac{2}{5}\text{c}$, find $b.$
Find five examples, where a number is expressed in exponential form. Also, identify the base and the exponent in each case.
(i) 4096 (il) 216 (iii) 15625 (iv) 1331 (v) 196
In our own planet Earth, $361,419,000$ square kilometre of area is covered with water and $148,647,000$ square kilometre of area is covered by land. Find the approximate ratio of area covered with water to area covered by land by converting these numbers into scientific notation.
In the adjoining figure, $ABC$ is a triangle in which $AD$ is the bisector of $\angle\text{A}.$ If $\text{AD}\bot\text{BC}$ show that $\triangle\text{ABC}$ is isosceles.
Each side of a square flower bed is $2\ m \ 80\ cm$ long. It is extended by digging a strip $30\ cm$ wide all around it. Find the area of the enlarged flower bed and also the increase in the area of the flower bed.
In the following figure, $E F \| GH , \angle E A B=70^{\circ}$ and $\angle A C H=120^{\circ}$. Then, find $\angle C A F$ and $\angle B A C$.
Image
$6(1 - 4x) + 7(2 + 5x) = 53$
In the following figure, show if possible both line and rotational symmetry.
Image
$6x + 5 = 2x + 17$
Consider this data collected from a survey of a colony.
Favourite Sport Cricket Basket Ball Swimming Hockey Athletics
Watching $1240$ $470$ $510$ $423$ $250$
Participating $620$ $320$ $320$ $250$ $105$
Draw a double bar graph choosing an appropriate scale. What do you infer in the bar graph?