The Print ShopAdding and taking away
The first sheet in the shop: two numbers up to twenty, added along a line, twenty-four of them to a page. Nothing has to be chosen before it prints, and the answers are already on the second page.
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Work out each answer.
Work out each answer.
Both numbers go up to twenty, which means some of the answers run past it: sums like 14 + 9 are drawn from the same pool as 4 + 9. That is deliberate and it is the whole of what makes a facts sheet worth doing twice: the sums that cross ten are the ones a child counts on their fingers for longest, and they are the ones that have to become recall rather than arithmetic.
No problem appears twice, and the pairs are not in order, so a child cannot get the fourth answer from the third. That sounds obvious and it is the thing most generated worksheets get wrong — a page of sums drawn at random from a small pool repeats itself surprisingly often, and a child who spots the repeat has been given fewer problems than the page claims to hold.
The answers were worked out when the problems were, so the key is the same page with the answers drawn in rather than a second attempt at the same questions — there is no way for the two to disagree. The number in the footer is the seed the sheet was built from: it is printed so that the identical sheet can be had again next week, rather than one that merely looks like it.
This page is one sheet out of a family that can print thousands, and the settings behind it — how many problems, how big the numbers get, how they are laid out, whether there is room to work — are all switches. The builder link at the top of the page carries this sheet’s own settings, so the bench opens on exactly the sheet here rather than on a blank one.
The configuration travels in the address bar rather than on a server, so the link can be bookmarked or sent to somebody as it stands — and what they open is this sheet, down to the seed, rather than another one like it.
The Grid deals these same facts as timed cards, and keeps the ones that come out slow in a practice deck of their own.
42 topics, each one a page like this one — the sheet, its answer key, and no account to print either.
The facts underneath everything else, and the columns after them.
Multiplication and division, from the twelve tables to the bracket.
Fractions, decimals, percentages and money — one idea, four ways.
Clocks, units and shapes: the math that is about something.
Signs, letters standing for numbers, and what a set is doing.
