The Print ShopParts of a number
Ten sets of four or five decimals — 3.4, 3.04, 3.45, 3.5 — with a ruled line under each to write them in order, smallest first. Every set shares a whole part, so the ordering is decided after the point, and the decimals in a set have one or two places between them.
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Write each set of decimals in order on the line under it, smallest first.
Write each set of decimals in order on the line under it, smallest first.
Mixed places inside a set are the point. Four two-place decimals sort the way whole numbers do, and a child can do it without thinking about the point at all; 3.4 next to 3.04 and 3.45 cannot be sorted that way, and lining them up — 3.40, 3.04, 3.45 — is the method the sheet is for. No set contains the same value twice, and none is already in order.
The answer goes on a ruled line rather than in a box, because the answer is the whole set rewritten and a box would fit one number. On the key the line carries the sorted set. The sheet is two columns wide at most, since a line of five decimals will not fit a narrower column, and the builder drops it to one column at larger type for the same reason.
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.
Not in the games, which drill facts rather than number sense.
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.
