Video: Comparing Expressions Involving Multiplication of 1-Digit Numbers

Use <, =, or > to fill in the blank: 6 × 7 _ 42


Video Transcript

Use the symbol for “is less than,” “is equal to,” or “is greater than” to fill in the blank. Six times seven, what, 42.

In this question, we’re being asked to compare two values together. On one side of the gap, we’ve got a multiplication expression, six times seven. And on the other side, we’ve got a number, 42. Is six times seven less than 42? Are they both worth the same? Or is it greater than 42?

Now, sometimes when we compare expressions like this, we don’t have to work anything out. Sometimes we can see similar numbers in the expressions. And then we can think about properties we know that can help us. But in this particular question, because we’ve got a multiplication on one side and a number on the other, really the only way we can find the answer is by finding out what this multiplication is worth. Then we can compare it with the number. So what is six times seven?

Let’s skip count in sevens six times. It could be a good chance to practice our seven times tables facts. Seven, 14, 21, 28, 35, 42. We skip counted in sevens six times to find that six times seven equals 42. Six times seven isn’t less than or greater than 42. It’s exactly the same as 42. And because six times seven is worth exactly the same as 42, the symbol that we need to use in between to fill in the blank is the one that means “is equal to.” We need to use the equal sign.

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