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Adding Numbers to 10
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In this video, we will learn how to find the missing total in an addition sentence when we are adding numbers to 10.
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This is a part–whole model.
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One of the parts contains three bricks.
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And the other part contains four bricks.
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This circle shows the whole amount.
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We could also call this the total.
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What is the total of three and four?
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It’s seven.
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Three plus four gives us a total of seven.
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So to find the total in an addition sentence, we need to add together both of the parts.
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Three plus four equals seven.
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The total is seven.
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Let’s practice adding to find the total.
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Add the following to find the total number of sandwiches.
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Three plus two equals what.
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To help us find the total.
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We could model the addition sentence using some counters.
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We have three blue counters and two orange counters.
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How many are there altogether?
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One, two, three, four, five.
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The total number of counters is five, so the total number of sandwiches is five.
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Three plus two equals five.
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What is the total number of leaves?
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Five plus three equals what.
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Let’s use a 10 frame to help us add together five and three.
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Here are five counters; now, let’s add three more.
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One more counter gives us six, seven, eight.
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The total number of leaves is eight.
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To find the total, we added together five and three.
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Five plus five equals what.
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In this question, we’re being asked to find the total of five plus five.
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We could place five counters into a 10 frame then add five more.
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Here are five orange counters and five green counters.
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The 10 frame is full, which means it has 10 counters.
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Five plus five gives us a total of 10.
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What have we learned in this video?
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We’ve learned how to add together two amounts to find the total.