问题
填空题
省略下面乘号2.3×a=______;a×b=______;b×v×2=______;x×x=______.
答案
2.3×a=2.3a;
a×b=ab;
b×v×2=2bv;
x×x=x2.
故答案为:2.3a,ab,2bv,x2.
省略下面乘号2.3×a=______;a×b=______;b×v×2=______;x×x=______.
2.3×a=2.3a;
a×b=ab;
b×v×2=2bv;
x×x=x2.
故答案为:2.3a,ab,2bv,x2.