解题思路:(1)2.6+2.6+2.6+2.6+2.6是4个2.6相加,即2.6×4,4.04+4.04+4.04是3个4.04相加,即4.04×3;
(2)0.07×3表示3个0.07相加,即0.07+0.07+0.07;
(3)“6.9×5”表示5个6.9相加的和是多少.
(1)2.6+2.6+2.6+2.6+2.6=2.6×4;
4.04+4.04+4.04=4.04×3;
(2)0.07×3=0.07+0.07+0.07;
(3)“6.9×5”表示3个6.9相加.
故答案为:2.6,4,4.04,3,0.07,0.07,0.07,5,6.9.
点评:
本题考点: 小数乘法.
考点点评: 一个小数乘整数,与整数乘法的意义相同,表示求几个相同加数的和是多少.