Subtract: 1001 − 99 =
Answer(s): B
Count up from 99 to 100 (+1) and from 100 to 1001 (+901). The answer is the sum of 901 and 1.
Add: 9.43 + 11.3 =
Answer(s): C
Vertically align the numbers so that the decimals are on top of each other:
Multiply: (226)(55.3) =
How many millimeters are there in 5 meters?
The prefix “milli-” means 1,000. There are 1,000 millimeters in 1 meter, so there are 5,000 millimeters in 5 meters. Alternatively, use dimensional analysis to convert: 1 Kilometer = 1,000 Meters1 Meter = 100 Centimeters 1 Centimeter = 10 Millimeters
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