Question

Using number line, find:
3×(-5)

Answer 1

• As per the data given in the above question
• we have to show this integer on number line .

The value of 3×(-5) ,means

Three jumps ,each jump have five steps .

So ,

STEP 1: we have to start from 0 to left side of number line .

STEP 1: we have to start from 0 to left side of number line .STEP 2: -1 to -5

STEP 1: we have to start from 0 to left side of number line .STEP 2: -1 to -5 STEP 3: -5 to -10

STEP 1: we have to start from 0 to left side of number line .STEP 2: -1 to -5 STEP 3: -5 to -10 STEP 4: -10 to -15

$3 \times ( - 5) = - 15$

Hence ,

The number line show in the picture .

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Answer 2

Concept: Number lines are horizontal straight lines where integers are arranged in equal intervals in mathematics. A number line can be used to depict all of the numbers in a succession. At both ends of the line, it goes on endlessly.

To find: Product of 3 × (-5) using number line

Solution:

Step 1: Draw a number line.

Step 2: Now, starting from 0 we will make 3 groups of 5 towards the negative side as we have -5 in the question (as shown in the image below)

Step 3: Wherever the range of the grouping ends is our answer. Here, the grouping ends at -15.

As we know when we multiply a positive integer with a negative integer, the product is a negative integer.

Hence 3 × (-5) = -15.

#SPJ2