How To Teach Multiplication Four Digit Numbers With 1000

Multiplication is the process of repeated addition. The result of multiplication is called product. For example: 3 x 5 = 5 + 5 +5 = 15 Multiplication is a commutative operation, that is, changing the order of the numbers does not affect the product. For example, 6 x 3 = 18 is the same with       3 x 6 = 18.   The principle use in this “How To Multiply Four Digit Numbers With 100″ can be use at  multiplication two digit numbers with 100 too.    For example:2843 x 1000   1. Multiply 2843 by 1 thousands in the vertical form.     Encourage the kids to say out orally:         3 x 1 thousands =       3 thousands     40 x 1 thousands =     40 thousands   800 x 1 thousands =   800 thousands 2000 x 1 thousands = 2000 thousands   2. Add 3 thousands, 40 thousands, 800 thousands and 2000 thousands   3. Since it is multiply by 1000, place the two zeros (000) to the right after the product.   **  Points to note:   Tens has one zero (0) Hundreds had two zeros (00) Thousands has three zeros (000)   4. Multiplication any four digit numbers with 10, two digit numbers with 100000 is the same way as multiply four digit numbers with 1000.   In mathematics, multiplication is one of four main operations in elementary arithmetic, and most people learn basic multiplication algorithms in elementary school. The inverse of multiplication is division.

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