暗算検定 〜わり暗算編〜

「暗算とは」
筆算やそろばん・計算機などを使わず、頭の中で計算すること。
わり暗算は、わり算だけでの問題。
6級〜1級までの問題を出題。
全問正解できるかな？

6〜4級　問題数10問
3級　問題数10問
2級　問題数5問
1級　問題数5問

※問題は独自で考えたもので、日本珠算連盟とは一切関係ありません "What is a mental arithmetic."
The not used, such as calculation by writing and abacus, calculator, to calculate in your head.
Wari mental arithmetic is, dividing only of the problem.
Questions the issue of up to 6 grade to 1 grade.
Can you do all the questions correct answer?

6 to 4 grade issue number of 10 questions
Tertiary issue number of 10 questions
Grade 2 issue number 5 questions
The number of primary issues 5 questions

※ The problem is that considered proprietary and are not affiliated with Japan Abacus Federation