Question
The value of 845 ÷ 5 is _________.
- 190
- 189
- 169
- 185
Hint:
One can perform division operation in many ways. Some of the techniques provided in mathematics are:
1. Division using Subtraction(general method)
2. Division using Multiplication(Area Model)
3. Long Division(In complicated cases).
The correct answer is: 169
In Mathematics, an area model is a rectangular model used for calculation of a division and multiplication of numbers. Here, we define quotient and divisor as length and width of a rectangle.
METHOD: One can do division in area model through blocks. we first try to divide the first most number of a dividend with the divisor and replace rest of the places of the dividend as 0 and so on till we get the number that is less than divisor as a remainder.
Answer: As we seen the method for division of numbers using area model then, Our goal is to find 845
5 hence, let us try to evaluate through blocks of a area model.
In block representation since only dividend changes I only updated dividend. Divisor remains constant in area model.
Area model representation for 8455 :
100 60 9
845
345
45
345
45
0
The answer obtained for 845/5 is 169.
Performing division of two numbers isn't a big task. But, in area model one should construct block table to solve a problem. It is an easy way of performing division.
Hence, For the given Question 8455 the division becomes:
100 60 9
| 845 | 345 | 45 |
| 345 | 45 | 0 |
This is the process of division through area model.
Related Questions to study
The value of 916 ÷ 2 is _________.
To perform a division is pretty simpler task. But, in area model every divisor and Quotient represents length and breadth of a rectangle. That's the reason why area model is called as a division using multiplication.
Performing division need's number of blocks in arranging block diagram. Here, number of blocks is equal to the product of number of digits in the divisor to the number of digits in the dividend.
Hence in evaluating 916 ÷ 2 we need 3
2 =6 blocks to perform a division.
The process of division in area model follows following table:
400 50 8
| 916 | 116 | 16 |
| 116 | 16 | 0 |
The value of 916 ÷ 2 is _________.
To perform a division is pretty simpler task. But, in area model every divisor and Quotient represents length and breadth of a rectangle. That's the reason why area model is called as a division using multiplication.
Performing division need's number of blocks in arranging block diagram. Here, number of blocks is equal to the product of number of digits in the divisor to the number of digits in the dividend.
Hence in evaluating 916 ÷ 2 we need 32 =6 blocks to perform a division.
The process of division in area model follows following table:
400 50 8
| 916 | 116 | 16 |
| 116 | 16 | 0 |
The value of 602 ÷ 7 is __________.
As we discussed earlier, Division of numbers using area model requires block diagram. No of blocks Required is the product of number of digits in dividend to the number of digits in divisor.
Hence, to solve 602 ÷ 7 we need 32 ==6 blocks to construct area block diagram.
Hence, the division process follows the below structure:
000 80 6
| 602 | 602 | 42 |
| 602 | 42 | 0 |
The value of 602 ÷ 7 is __________.
As we discussed earlier, Division of numbers using area model requires block diagram. No of blocks Required is the product of number of digits in dividend to the number of digits in divisor.
Hence, to solve 602 ÷ 7 we need 32 ==6 blocks to construct area block diagram.
Hence, the division process follows the below structure:
000 80 6
| 602 | 602 | 42 |
| 602 | 42 | 0 |
The value of 774 ÷ 3 is ________.
Area model block diagram size depends on number of digits in divisor and dividend. One can obtain number of blocks as product of number of digits in divisor to the number of digits in the dividend.
Hence, In our Question we have got 32= 6 blocks.
Block table creation: 200 50 8
| 774 | 174 | 24 |
| 174 | 24 | 0 |
The value of 774 ÷ 3 is ________.
Area model block diagram size depends on number of digits in divisor and dividend. One can obtain number of blocks as product of number of digits in divisor to the number of digits in the dividend.
Hence, In our Question we have got 32= 6 blocks.
Block table creation: 200 50 8
| 774 | 174 | 24 |
| 174 | 24 | 0 |
