Mental Arithmetic. Level 3-4
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1
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🎉 Welcome to Level 3-4 of Mental Arithmetic! 🎉
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Introduction from the coach
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2
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Introducing to the multiplication
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Life-hacks for learning multiplication table
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(a*b) One-digit number multiplied by one-digit
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(ab*c) Two-digit number multiplied by one-digit number
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(abc*d) Three-digit number multiplied by one-digit number
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(ab*cd) Two-digit number multiplied by two-digit number
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Homework. Multiplication
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3
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Steps of teaching multiplication
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The end of multiplication
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4
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Intro
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Consept and lifehacks
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Setting place for division
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Division. Introduction. Homework
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5
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Basics for division on the abacus
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ab:c Two-digit number divided by one-digit number
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Practicing. ab:c
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abc:d Three-digit number divided by one-digit number
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Practicing. abc:d
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abcd:e Four-digit number divided by one-digit number
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Practicing abcd:e
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abcd:ef Four-digit number divided by two-digit number
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Practicing abcd:ef
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Two to one (2-1) One to two (1-2) rules
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Division. Homework
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6
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Instruction
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Assessment. The link
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Thank you