Let's enjoy solving them every day!
・Recommended for those who want to enjoy calculation while training brains and improving calculation skills.
・You can enjoy 21 genre questions.
・You create a mathematical expression by using the four arithmetic operations (+, -, ×, ÷) and numbers.
・There is more than one answer.
・The more questions you solve, the more you improve your calculation ability and speed.
・A good brain training.
・Recommended for those who want to enjoy calculation while training brains and improving calculation skills.
・You can enjoy 21 genre questions.
・You create a mathematical expression by using the four arithmetic operations (+, -, ×, ÷) and numbers.
・There is more than one answer.
・The more questions you solve, the more you improve your calculation ability and speed.
・A good brain training.
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