In our first grade (public school in the states), the math curriculum focuses on different ways to "make 10" using addition and subtraction. For us, this triggered getting our oldest kid tested for the gifted program. She wasn't a super early reader so I hadn't considered her as gifted. By the time she entered first grade, she had been playing with numbers of her own volition at a much higher level for many years. I was appalled at how easy the math seemed until I realized that for most of the class it was the right level.
