Table of 81
Multiplication table of 81
More multipliers from the time table of 81
Have you finished learning the first 10 results and are you interested in continuing?
To continue expanding your knowledge of this table, you can see the results below, starting from multiplier 11 and going up to 100.
Suggestions for learning the 81 time table more easily
The table of 81 can be taught as multiplying by 80 and then adding the original number. This method builds on the familiarity with the table of 80, enabling students to quickly calculate by simply adding the base number. By making this simple adjustment to the product of 80, students can approach the table of 81 more effectively and with greater confidence. A different option to resolve and understand the multiples of 81 is to multiply by 9 and then quadruple the result (multiply by 4).
Practical tips:
- Encourage children to first multiply the number by 80 and then add the same number to the result. For example, 81 x 3 is calculated as (80 x 3) + 3 = 240 + 3 = 243.
- Decomposition: Multiply first by 9 and then quadruple the result.
- Example: 81 x 3 can also be calculated as (9 x 3) multiplied four times: 243.
- Number patterns: Notice that the results follow a predictable pattern.
- Example: 81, 162, 243, 324, etc.
- Using objects: Use objects to form groups of eighty-one and observe the results. Provide practical exercises involving calculations in multiples of 81, such as preparing materials for projects or calculating product costs.
Mnemonic rules:
- “Eighty plus one, eighty-one is done,” a simple phrase that helps remember how to add the original number to the product of 80 to get the multiples of 81.
- Rhyme: “Eighty-one, one sixty-two, two forty-three, keep adding and you’ll see what’s true.”
- Visualization: Imagine eighty-one objects, like eighty-one buttons, and group more buttons to see how it multiplies.
Exercises for the table of 81
To memorize the multiplication table of Eighty One, we first suggest doing the exercises in ascending order.
Once you’ve completed the previous exercises, you can move on to the scrambled exercises related to the multiplication of 81, which are more challenging.
81 Multiplication table images for printing in .PDF
At the bottom, you will find multiple images corresponding to the multiplication table of 81 in PDF format, so you can print it and study. Additionally, you will have images with exercises to reinforce your learning by practicing this table.
Printable image exercises for the table of 81
In order to solidify your knowledge, we suggest that, in addition to studying the theory presented in this article, you practice with the exercises from the multiplication table of 81 that we’ve organized. These are available as an image that you can open (in PDF format) download and print to practice whenever you wish.
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