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For positive numbers, count to the right of zero. Positive numbers get higher the further to the right, eg 6 is greater than 3. For negative numbers, count to the left of zero. Negative numbers ...
Multiplying or dividing two numbers with different signs will give a negative answer. E.g. Work out -4 ×-3 −4 × −3. 4×3 = 12 4 × 3 = 12. Both numbers have the same sign, so the answer will be positive. -4 ×-3 = 12 −4 × −3 = 12. E.g. Work out 12 ÷-2 12 ÷ −2. 12÷2=6 12 ÷ 2 = 6.
Numbers don't just stop at zero. When you count backwards from zero, you go into negative numbers. Positive numbers are more than zero: 1, 2, 3, 4, 5, etc. Negative ...
- Signs
- Why Does Multiplying Two Negative Numbers Make A Positive?
- Direction
- Multiplication Table
Let's talk about signs. "+" is the positive sign, "−" is the negative sign. When a number has no sign it usually means that it is positive. And we can put () around the numbers to avoid confusion.
Well, first there is the "common sense" explanation: So, two negatives make a positive, and if that satisfies you, then you don't need to read any more.
It is all about direction. Remember the Number Line? Well here we have Baby Steven taking his first steps. He takes 2 paces at a time, and does this three times, so he moves 2 steps x 3 = 6 steps forward: Now, Baby Steven can also step backwards (he is a clever little guy). His Dad puts him back at the start and then Steven steps backwards 2 steps,...
Here is another wayof looking at it. First have a play with this (explanations below): Start with the multiplication table(just up to 4×4 will do): Now see what happens when we head into negatives! Let's go backwardsthrough zero: Look at the "4" column: it goes -16, -12, -8, -4, 0, 4, 8, 12, 16. Getting 4 larger each time. Look over that table agai...
If the signs are the same, then replace them with a plus. If the signs are the different, then replace them with a minus. \[5 +- 1\] The +- has different signs, so replace it with a minus. \[5 - 1 = 4\] Addition. When adding with negative numbers, we use the number line. Start at the number, then count the 'jumps' to the right. \[-4 + 3\] Start ...
The last two examples showed us that taking away balloons (subtracting a positive) or adding weights (adding a negative) both make the basket go down. So these have the same result: (+6) − (+3) = (+3) (+6) + (−3) = (+3) In other words subtracting a positive is the same as adding a negative. Subtracting A Negative Number
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What are positive and negative integers?
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Rule 1: When the signs of the numbers are different, the result is negative. In other words, when we divide a negative number with a positive number, the answer is always negative. For example, -12 ÷ 3 = -4. Rule 2: When the signs of the numbers are the same, the result is positive.
