七下数学期中考试“实数”计算题专题训练

七下数学期中考试“实数”计算题专题训练

  • 简介

    1、49+3−8−22 =7+(-2)-2 =3 2、π−4+3−π2 =4-π+π-3 =1 3、−12025×62×19+3−27 =-1×6×13-3 =-2-3 =-5 4、3−23+−22+1−2 =-2+2+2-1 =2-1 5、2(6−7)−26−7 =26−27−(26−7) =26−27−26+7 =−7 6、1−925+3−0.125 =1625+3−0.125 =45−12 =310 7、(−1)2025+3−2+3 =-1+2-3+3 =1 8、16−327+8×(−12) =4-3+(-4) =-3 9、9+3−8 =3-2 =1 10、−1−2+2−3 =-1+2+3-2 =3−1 11、2−(2−2) =2-2+2 =2 12、4+3−27−3−2+(−1)2028 =2+(-3)-(2−3)+1 =2−3−2+3+1 =3−2 13、(25−3)+(3−5)

七下数学期中考试“实数”计算题专题训练