问题
填空题
6.2×2.8+3.8×2.8=(______○______)○2.8.
答案
6.2×2.8+3.8×2.8,
=(6.2+3.8)×2.8,
=10×2.8,
=28;
故答案为:6.2,+,×,3.8.
6.2×2.8+3.8×2.8=(______○______)○2.8.
6.2×2.8+3.8×2.8,
=(6.2+3.8)×2.8,
=10×2.8,
=28;
故答案为:6.2,+,×,3.8.