3数の減法(小数)-3(6問)
次の計算をせよ。
(+12.4)-(+17.2)-(-9.9)
解答○ ×(-1.02)-(+0.27)-(+1.33)
解答○ ×(+9.9)-(-6.3)-(+15.7)
解答○ ×(-10.5)-(-5.6)-(+12.8)
解答○ ×(-5.21)-(+3.26)-(-4.29)
解答○ ×(+5.22)-(+17.31)-(-15.41)
解答○ ×問題と解答
(+12.4)-(+17.2)-(-9.9)5.1 (-1.02)-(+0.27)-(+1.33)-2.62 (+9.9)-(-6.3)-(+15.7)0.5 (-10.5)-(-5.6)-(+12.8)-17.7 (-5.21)-(+3.26)-(-4.29)-4.18 (+5.22)-(+17.31)-(-15.41)3.32
