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Yohaku 3 by 3 Puzzles

Fill in the blank spaces so that the cells give the sum or the product shown in each row and column.

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This is level 5: multiplication with consecutive numbers. You will be awarded a trophy if you get at least 5 of the puzzles correct and you do this activity online.

1
105
24
144
40 162 56 ×

Use all of the numbers 1 to 9

2
72
112
45
32 30 378 ×

Use all of the numbers 1 to 9

3
108
210
880
220 210 432 ×

Use consecutive numbers

4
1716
1120
2160
2310 936 1920 ×

Use consecutive numbers

5
5760
4032
1760
7392 1728 3200 ×

Use consecutive even numbers

6
14040
9856
15360
10080 21120 9984 ×

Use consecutive even numbers

7
1995
2431
945
2295 1911 1045 ×

Use consecutive odd numbers

8
17081
13041
28875
20925 21315 14421 ×

Use consecutive odd numbers

Check

This is Yohaku 3 by 3 Puzzles level 5. You can also try:
Level 1 Level 2 Level 3 Level 4 Level 6

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

Why am I learning this?

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Description of Levels

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2 by 2 Puzzles - A good place to start before takling these three by three monsters!

Set 1 - Addition with some numbers given

Set 2 - Addition with consecutive numbers

Set 3 - Addition with multiples, primes and factors

Set 4 - Multiplication with no restrictions

Set 5 - Multiplication with consecutive numbers

Set 6 - Multiplication with multiples, primes and factors

4 by 4 Puzzles - You must be joking - four by four - really?

More Puzzles - A huge collection of mathematical puzzles for you to enjoy.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

Log in Sign up

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