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Multiplication Table of 80 represents the results of multiplying 80 by various whole or natural numbers. The multiplication table of 80 is the repeated addition of 80. For example, on adding 80 four times – 80 + 80 + 80 + 80 = 360. The Table of 80 from numbers 1 to 20 are listed below.
Table of 80 up to 10
| 80 × 1 = 80 | 80 × 6 = 480 |
| 80 × 2 = 160 | 80 × 7 = 560 |
| 80 × 3 = 240 | 80 × 8 = 640 |
| 80 × 4 = 320 | 80 × 9 = 720 |
| 80 × 5 = 400 | 80 × 10 = 800 |
Table of 80 up to 20
| 80 × 11 = 880 | 80 × 16 = 1280 |
| 80 × 12 = 960 | 80 × 17 = 1360 |
| 80 × 13 = 1040 | 80 × 18 = 1440 |
| 80 × 14 = 1120 | 80 × 19 = 1520 |
| 80 × 15 = 1200 | 80 × 20 = 1600 |
Tips for memorising the Table of 80.
- One of the most common tricks students use is writing down the multiplication table of 80 from 1 to 20. Example: One-time eighty is 80, Two times eighty is 160, Three times eighty is 240, and so on.
- The second easy trick is skip counting, which is the practice of counting forward from 0. We repeatedly add the same number to the last number to skip counting. For example, here, we will count adding 0 to 80. So, 0 + 80 = 80 , 80 + 80 = 160, 160 + 80 = 240 and so on.
- Students can use another trick, writing down the same multiplication table of 8 with 0 as its last digit. Take a look at the table shown below.
| Table of 8 | Adding 0 as last digit |
| 8 x 1 = 8 | 80 |
| 8 x 2 = 16 | 160 |
| 8 x 3 = 24 | 240 |
| 8 x 4 = 36 | 360 |
Therefore, we get the same exact multiples of 80 by respective whole numbers by inserting single 0 as the last digit.
Solved Examples
1)A factory manufactures 80 chocolates in one batch. How many chocolates are manufactured in a day if total batches completed are 15?
Solution:
Number of chocolates manufactured in 1 batch = 80
Number of chocolates manufactured in 15 batches = Number of chocolates manufactured in 1 batch x 15
So, 80 x 15 = 1200.
Therefore, the number of chocolates manufactured in 15 batches are 1200.
2) A car consumes 80 litres of petrol daily. How many litres of petrol will the car consume in one week ?
Solution:
Petroleum consumed by car daily = 80 litres
Petroleum consumed by car in one week = Petroleum consumed by car daily x 7 days
=> 80 x 7 = 560 litres
The total Petroleum consumed by car in one week is 560 litres.
3) 80 cakes are baked every day in a bakery. How many cakes will be baked in two weeks ?
Solution:
Number of cakes baked every day = 80
Number of cakes baked in two weeks = Number of cakes baked every day x 38
So, 80 x 14 days = 1120.
Therefore, the number of cakes baked in two weeks is 1120.
4) What is the value of six times 80 minus 34 plus 20?
Six times 80 is 6 x 80 = 480
Now we have to find the value of six times 80 minus 24 plus 20.
So, 480 – 34 + 20 = 480 – 14
=> 480 – 14
= 466.
Therefore, the value of six times 80 minus 34 plus 20 is 466.
