you round to the nearest whole number if it's a decimal,or round to the greatest place.
Example:34+97=
34 rounds to 30,97 rounds to 100
30+100=130
EXAMPLE: 3.19+2.76=
3.19 rpunds to 3,and 2.76 rounds to 3
3+3=9
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Make a preliminary estimate. If you are any good at making estimates and if the final answer is "close" to the estimate then it is reasonable.
Math word problems.
The "product" is common in math problems. (Especially multipucation problems.) A product is the answer to a multipucation problem.
it is the ability to solve math problems Math problems solving means generate some specific answers to the given problem.
Diligent study for a number of years has given me the tools I need to solve most math problems I encounter.