We’ve taken some fairly simple additions in this week’s wordy #MondayMaths puzzle and devilishly replaced digits with letters.
In each of the three sums, a letter represents a particular number between zero and nine. We’re asking students to work out which sums are possible and provide examples.
As part of our mastery curriculum, Year 7 students will be looking at place value from the beginning of this term. This puzzle is a lovely way to challenge their depth of understanding of place value and the column method for written addition.
Where to begin
When trying to draw any conclusions with these kind of problems, it’s often useful to work from the ones column, to the tens, and then to the hundreds etc. as you would with a standard column addition. You can also encourage students to ask themselves if anything special would happen if one of the letters represented zero.
The next step should consider what it means if the numbers being added and their sums have a different number of digits.
A head start
Here are some clues for each word sum:
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