计算,能简算的要简算.(1)46.7-15.03-4.97(2)709-4832÷16(3)(19+127)÷4+2723(4)23×[910+(716-14)].-数学
题文
计算,能简算的要简算. (1)46.7-15.03-4.97 (2)709-4832÷16 (3)(
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答案
(1)46.7-15.03-4.97 =46.7-(15.03+4.97), =46.7-20, =26.7; (2)709-4832÷16 =709-4832÷(8×2), =709-4832÷8÷2, =709-604÷2, =709-302, =407; (3)(
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