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The Multi-digit multiplication exercise appears under the 5th grade (U.S.) Math Mission, 6th grade (U.S.) Math Mission, 7th grade (U.S.) Math Mission, 8th grade (U.S.) Math MissionArithmetic essentials Math Mission and Mathematics I Math Mission. This exercise practices multiplication of larger numbers with carrying.

Types of Problems

There is one type of problem in this exercise:

  1. Multiply the numbers: This problem asks a multiplication problem with two numbers that have more than one digit. The user is expected to find the product and put it in the appropriate space.
    Multdigmult

    Multiply the numbers

Strategies

This exercise is easy to get accuracy badges as long as user is familiar with the multiplication algorithm. Speed badges are medium without a calculator until they develop more efficient methods for multiplication because the standard algorithm can be lengthy in these examples.

  1. A calculator goes against the spirit of this problem but can be used to increase user's speed.
  2. Many of the problems were 3-digit by 3-digit or 3-digit by 4-digit.

Real-life Applications

  1. Multiplication is needed and used by mechanics for repairing cars by multiplying when they overhaul the engine, measure the pistons or just to put in a new gearbox or engine.
  2. By learning multiplication and memorizing the times tables, users provide themselves with essential building blocks to do higher learning math, like division, fractions and even algebra.
  3. Multiplication is necessary for a career in the stock market.

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