问题
填空题
当x=0.6时,2x=______,7x=______,12x=______,x+x=______,x2=______.
答案
当x=0.6时,
2x=2×0.6=1.2,
7x=7×0.6=4.2,
12x=12×0.6=7.2,
x+x=0.6+0.6=1.2,
x2=0.62=0.36.
故答案为:1.2,4.2,7.2,1.2,0.36.
当x=0.6时,2x=______,7x=______,12x=______,x+x=______,x2=______.
当x=0.6时,
2x=2×0.6=1.2,
7x=7×0.6=4.2,
12x=12×0.6=7.2,
x+x=0.6+0.6=1.2,
x2=0.62=0.36.
故答案为:1.2,4.2,7.2,1.2,0.36.