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# Unit 5: Arithmetic in base ten

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Adding & subtracting decimals word problemsGet 3 of 4 questions to level up!

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Add decimals visuallyGet 5 of 7 questions to level up!

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Subtract decimals visuallyGet 5 of 7 questions to level up!

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Adding decimals: thousandthsGet 5 of 7 questions to level up!

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Subtracting decimals: thousandthsGet 5 of 7 questions to level up!

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Level up on the above skills and collect up to 500 Mastery points

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Multiply decimals and whole numbers visuallyGet 5 of 7 questions to level up!

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Multiplying decimals like 4x0.6 (standard algorithm)Get 5 of 7 questions to level up!

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Multiplying decimals like 2.45x3.6 (standard algorithm)Get 5 of 7 questions to level up!

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Multiplying decimals like 0.847x3.54 (standard algorithm)Get 3 of 4 questions to level up!

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Division by 2-digitsGet 3 of 4 questions to level up!

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Multi-digit divisionGet 3 of 4 questions to level up!

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Dividing whole numbers like 56÷35 to get a decimalGet 5 of 7 questions to level up!

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Divide decimals by whole numbers visuallyGet 3 of 4 questions to level up!

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Dividing decimals: hundredthsGet 3 of 4 questions to level up!

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Dividing decimals: thousandthsGet 3 of 4 questions to level up!

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Level up on the above skills and collect up to 600 Mastery points

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Level up on all the skills in this unit and collect up to 1500 Mastery points!