Enter these, and other numbers, in simple sentences with the verbs + - * and %.

2 * 12.75 25.5An important rule is that a number does not start with a dot.

0.5 0.5 0.5 + 3 3.5 .5 +-+-+ ¦.¦5¦ +-+-+ .5 + 3 ¦syntax error ¦ .5+3Clearly .5 is not the same as 0.5. You don't need to know now what .5 is yet, but it is important to understand that a number does not start with a dot.

The _ (underbar) is infinity and is a number.

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