① ×26 | ② ×![]() | ③ ×![]() | ④ ×6×![]() |
⑤ × ×![]() | ⑥(20+ )×![]() | ⑦ × + ×![]() | ⑧1 -( + ) |
① ×26=10, | ② × = , | ③ × = , | ④ ×6× = , |
⑤ × × = , | ⑥(20+ )× =18 , | ⑦ × + × = , | ⑧1 -( + )= . |
分析:①②③④⑤根据分数乘法的计算法则约分求解;
⑥⑦运用乘法分配律简算;
⑧根据减法的性质简算.
点评:本题考查了简单的运算,要注意根据运算法则和运算定律快速准确的得出答案.
编辑:chaxungu时间:2026-04-27 10:48:06分类:小学数学题库
① ×26 | ② ×![]() | ③ ×![]() | ④ ×6×![]() |
⑤ × ×![]() | ⑥(20+ )×![]() | ⑦ × + ×![]() | ⑧1 -( + ) |
① ×26=10, | ② × = , | ③ × = , | ④ ×6× = , |
⑤ × × = , | ⑥(20+ )× =18 , | ⑦ × + × = , | ⑧1 -( + )= . |