| Currach Software Mobile | / | iPhone | Japanese |
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123s +-x÷ Version 1.0 |
iPhone & iPod touch Currach Software Mobile |
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update 08.Nov.2010 |
| 123s +-x÷ is a Search Puzzle for Math Training. Let's enjoy arithmetic.
+ and - , x and ÷ are pairs. It becomes very effective mathematics training to repeat an addition calculation and a subtraction calculation with the same number. The multiplication and division is similar, too. QAs example: kind is 'x÷', calc. numberis 9, QA min is 1, QA max is 9 QAs of case 'x 9' 1 x 9 = 9 2 x 9 = 18 3 x 9 = 27 4 x 9 = 36 5 x 9 = 45 6 x 9 = 54 7 x 9 = 63 8 x 9 = 72 9 x 9 = 81 QAs of case '÷ 9' 9 ÷ 9 = 1 18 ÷ 9 = 2 27 ÷ 9 = 3 36 ÷ 9 = 4 45 ÷ 9 = 5 54 ÷ 9 = 6 63 ÷ 9 = 7 72 ÷ 9 = 8 81 ÷ 9 = 9
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