Pre-algebra Addition with decimals math game for students in fifth grade and sixth grade. Adding decimal numbers fun games. This quiz tests the learner’s knowledge of advanced addition of decimals. This addition process works like regular addition but has to align the decimal points together. When the decimals are lined up, all you have to do is drag the decimal point straight down. In situations, quiz requires the addition of a decimal and a whole number, all that needs to be done is the conversion of the whole number into a decimal. For instance, add 345.876 and 565. The whole number would be converted into a decimal by the inclusion of a decimal point and zeros after the decimal point and it becomes 565.000.

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