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| The white paper gives the problem to sove: 124 - 89 = ? The number 124 is laid out on the mat; can you find the steps of the calculation? | |
| Total images: 9 | Help | |
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| The white paper gives the problem to sove: 124 - 89 = ? The number 124 is laid out on the mat; can you find the steps of the calculation? | |
| Total images: 9 | Help | |