递等式计算.(能简便计算的要简便计算)826-765÷157.2×99+7.234÷[(35-14)×37]6.13-23-13+0.8736×(34-16+29)-数学
题文
递等式计算.(能简便计算的要简便计算)
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题文
递等式计算.(能简便计算的要简便计算)
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题型:解答题 难度:中档
答案
826-765÷15, =826-51, =775; (2)7.2×99+7.2, =7.2×(99+1), =720; (3)
=
=
=5; (4)6.13-
=6.13+0.87-(
=7-1, =6; (5)36×(
=36×
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