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[quote=Anonymous][quote=Anonymous]Common Core Math Standards for 4th grade introduce multiplying 4 digits by one digit or 2 digits by 2 digits. Long division for 4th grade is four digits divided by one digit. It does not specify that students need to use the standard algorithm.

5th Grade Common Core Math standards indicate students should use standard algorithm to multiply and divide multi-digit numbers. The actual standard says:

Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

So the long division given in the example isn't even taught in 5th grade because only 2 digit divisors are required.

This is expanded in 6th grade. So the answer if your child is going to school in a state that uses Common Core is 5th to 6th grade. Really though those problems are tedious not hard. If you can do 2 digit by 2 digit multiplication you can solve those problems by using different methods. In some schools the

Here is the 4th grade Common Core Math standard:
4th grade standard Use place value understanding and properties of operations to perform multi-digit arithmetic.

CCSS.MATH.CONTENT.4.NBT.B.5
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
CCSS.MATH.CONTENT.4.NBT.B.6
Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models[/quote]

That is the starting point for the answer, but of course if varies by class and child. Some kids are not meeting these standards, some are approaching these standards, some are meeting them, and some are in advance of these standards.[/quote]

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