文字式の計算1-2(6問)
次の式を簡単にせよ。
a-0.5a
解答○ ×0.8x-0.1x
解答○ ×2a-3.5a
解答○ ×-2.1y+0.7y
解答○ ×1.02x+0.8x
解答○ ×-0.02y+0.1y
解答○ ×問題と解答
a-0.5a0.5a 0.8x-0.1x0.7x 2a-3.5a-1.5a -2.1y+0.7y-1.4y 1.02x+0.8x1.82x -0.02y+0.1y0.08y
a-0.5a0.5a 0.8x-0.1x0.7x 2a-3.5a-1.5a -2.1y+0.7y-1.4y 1.02x+0.8x1.82x -0.02y+0.1y0.08y
