Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

123 lines (117 sloc) 5.755 kb
<!DOCTYPE html>
<html data-require="math graphie graphie-helpers-arithmetic">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Multiplying 1-digit numbers</title>
<script data-main="../local-only/main.js" src="../local-only/require.js"></script>
</head>
<body>
<div class="exercise">
<div class="problems">
<div id="missing-C">
<div class="vars" data-ensure="A !== 0 || B !== 0">
<var id="A">randRange(0, 10)</var>
<var id="B">randRange(0, 10)</var>
<var id="C">A * B</var>
</div>
<div class="question">
<code>\Huge\blue{<var>A</var>}\times\green{<var>B</var>}=\pink?</code>
</div>
<div class="solution" data-forms="integer"><var>C</var></div>
<div class="hints">
<div data-if="A > 1 && B > 1" data-unwrap="">
<div>
<p>
Let's picture this problem by drawing <code>\green{<var>B</var>}</code> rows of <code>\blue{<var>A</var>}</code> circles.
</p>
<div class="graphie">
init({
range: [[-1, 12], [-2.5, B - 2.5]],
scale: [45, 45]
});
for (var i = 0; i &lt; B; i++) {
drawRow(A, B - 3 - i, BLACK, A * i + 1);
}
</div>
<p>
How many circles are there?
</p>
</div>
</div>
<div data-else-if="A === 0 || B === 0">
<div data-if="A === 0">
If we have <code>\green{<var>B</var>}</code> zeros, how much do we have in total?
</div>
<div data-else="">
If we have <code>\blue{<var>A</var>}</code> zeros, how much do we have in total?
</div>
</div>
<div data-else="">
<div data-if="A === 1">
If we have one <code>\green{<var>B</var>}</code>, how much do we have in total?
</div>
<div data-else="">
If we have one <code>\blue{<var>A</var>}</code>, how much do we have in total?
</div>
</div>
<div>
<code>\Huge\blue{<var>A</var>}\times\green{<var>B</var>}=\pink{<var>C</var>}</code>
</div>
</div>
</div>
<div id="missing-B">
<div class="vars">
<var id="A">randRange(1, 10)</var>
<var id="B">randRange(0, 10)</var>
<var id="C">A * B</var>
<var id="ORDER">rand(2)</var>
</div>
<div class="question">
<div data-if="ORDER" data-unwrap="">
<code>\Huge\blue{<var>A</var>}\times\green{?}=\pink{<var>C</var>}</code>
</div>
<div data-else="">
<code>\Huge\green{?}\times\blue{<var>A</var>}=\pink{<var>C</var>}</code>
</div>
</div>
<div class="solution" data-forms="integer"><var>B</var></div>
<div class="hints">
<div data-if="A > 1 &amp;&amp; B > 1" data-unwrap="">
<div>
<p>
How many rows of <code>\blue{<var>A</var>}</code> circles do we need to make <code>\pink{<var>C</var>}</code> total circles?
</p>
<div class="graphie">
init({
range: [[-1, 12], [-2.5, B - 2.5]],
scale: [45, 45]
});
for (var i = 0; i &lt; B; i++) {
drawRow(A, B - 3 - i, BLACK, A * i + 1);
}
</div>
<p>
We need <code>\green{<var>B</var>}</code> rows of <code>\blue{<var>A</var>}</code> circles to make <code>\pink{<var>C</var>}</code> total circles.
</p>
</div>
</div>
<div data-else-if="B === 0">
What times <code>\blue{<var>A</var>}</code> equals zero?
</div>
<div data-else="">
What can we multiply by <code>\blue{<var>A</var>}</code> to get <code>\pink{<var>C</var>}</code>?
</div>
<div>
<div data-if="ORDER" data-unwrap="">
<code>\Huge\blue{<var>A</var>}\times\green{<var>B</var>}=\pink{<var>C</var>}</code>
</div>
<div data-else="">
<code>\Huge\green{<var>B</var>}\times\blue{<var>A</var>}=\pink{<var>C</var>}</code>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
Jump to Line
Something went wrong with that request. Please try again.