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A monster has five fingers on each of its four hands.
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How many fingers does the monster have altogether?
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The word altogether in this question means in total.
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Now, one way we could count the total of the monster’s fingers is just one by one.
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One, two, three, four.
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This is taking quite a while, isn’t it?
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There’s got to be a quicker way to find the answer.
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Let’s look at the fact we’re given in the first sentence.
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We’re told that a monster has five fingers on each of its four hands.
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We’ve already counted four of the fingers, can you see?
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And then we add this one here that looks a bit like a thumb; that makes five.
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And we can see that the monster has four hands altogether.
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One, two, three, four.
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And because each of the monster’s hands are the same, we know we can see five fingers plus another group of five fingers plus another group and one more.
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We can see four equal groups of five.
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So how could we find the total of four groups of five?
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Well, we know how to skip count in fives, don’t we?
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It’s quite quick to do.
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Five, 10, 15, and so on.
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What if we counted in fives four times, one for each of the monster’s hands?
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Each time we make a jump of five, we’ll show it on a number line.
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Five, 10, 15, 20.
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Our monster has five fingers on each of its four hands.
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And we found the total number of fingers that the monster has altogether by skip counting in fives four times.
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Five, 10, 15, 20.
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The number of fingers that the monster has altogether is 20.