BrainBashers - Daily MathemaGrids - May 13

Random: easy medium hard warn when leaving unfinished puzzle save

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May 13 - Puzzle A
Puzzle Copyright © Kevin Stone

check hint answer
print restart new

show mistakes when checking
always show clock save
Keyboard Options
add / remove save?
use default save?

check
hint
answer
print
restart
new

Today's MathemaGrids Puzzles

Puzzle A 0 1 2 3 random hints
Puzzle B 0 1 2 3 random hints
Puzzle C 0 1 2 3 random hints

Note: these puzzles all have a similar difficulty level, take a look at the information about the difficulty levels.

All daily items change at midnight GMT. set time zone

Objective / Rules

Complete the grid using all of the numbers from 1 to 9.
When completed, all of the sums must be correct.
The sums are solved strictly from left to right, and top to bottom.
The normal order of mathematical operations is ignored.
For example, 2 + 5 x 9 is calculated as (2 + 5) x 9 = 63.
÷ 1 does not appear in the puzzle.
x 1 does not appear in the puzzle, although there might be 1 x.
At no point will any calculation go below zero, or become fractional.

Read the help / walkthrough page on MathemaGrids puzzles for the rules, a more detailed explanation, and a walkthrough.

help

Notes

Keyboard Options
If you are using a device without a physical keyboard, the on-screen keyboard is numeric. If you prefer to use the default, non-numeric keyboard, you can select the option below the puzzle. There is an option to add / remove characters. Entering the same character again will remove it (by removing all duplicates), and the contents are sorted.

Pencil Marks
What is a pencil mark? Pencil marks can help you keep track of your own thinking, simply enter more than one digit / letter into each square, just like you might do if you were using pen and paper. The size of the digits / letters is smaller when there is more than one digit / letter in a square. A square might contain more pencil mark digits / letters than can be shown.

Checking
Once you have started the puzzle, if you click 'check' the system will check for incorrect squares. If 'show mistakes when checking' is ticked / checked they will be marked in red.

Uniqueness
This puzzle has exactly one correct answer, which can be found using logical reasoning (i.e. no guesses are required). If you think that you have found another answer, then check it carefully, and then check the rules for a reason why it isn't allowed.

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