1樓:匿名使用者
=(367+1)x466-467x367
=367x466+466-467x367
=466-(467-466)x367
=466-1x367
=466-367=99
2樓:匿名使用者
=367×466-467×367+466
=367×(466-467)+466
=367×(-1)+466
=-367+466
=99或者:
368×466-467×367
=368×467-368-467×367
=467×(368-367)-368
=467×1-368
=467-368
=468-1-368
=100-1=99
3樓:神龍00擺尾
(367+1)×(467-1)-467×367=367×467+467-367-1-467×367=467-367-1=99
4樓:
=368x466一(466+1)x367
=368x466一466x367一367
=466x(368-367)-367
=466-367=99
5樓:
這種題目一般採用分解法25×16×125=25×(4×4)×(25×5) =(25×4)×(4×25)×5 =100×100×5 =50000希望採納,謝謝
(1 2 3) 1(2 3 4) 1(3 4 51(9 10 11)簡便運算
1 1 2 3 1 2 1 1 2 1 3 1 2 1 2 3 4 1 2 1 2 1 3 1 4 1 3 1 3 4 5 1 2 1 3 1 4 1 5 1 4 1 n n 1 n 2 1 2 1 n 1 n 1 1 n 2 1 n 1 1 1 2 3 1 2 3 4 1 3 4 5 1 n n ...
5 45 13 1 3 45 4 12 5 1 28 8簡便運算
5.45 13 1.3 45.4 12.5 1.28 8 5.45 13 13 4.54 12.5 8 1.28 5.45 4.54 13 100 1.28 9.99 13 128 10 0.01 13 128 10 13 0.01 13 128 130 0.13 128 130 128 0.13 ...
584205簡便計算,585845。用簡便運算。
原式 5.8 4.2 4.2 0.5 10 2.1 7.9 5.8 4.2 x 0.5 5.8 4.2 x 1 2 5.8 2.1 7.9 0.8x0.25x0.4x12.5簡便計算啊 0.8x0.25x0.4x12.5簡便計算 0.8x0.25x0.4x12.5 0.8x12.5 x 0.4x0....