简便计算题 4.7*11-4.7 28*6.3-6.3*184.8+5.2/4

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简便计算题 4.7*11-4.7 28*6.3-6.3*184.8+5.2/4
简便计算题 4.7*11-4.7 28*6.3-6.3*184.8+5.2/4

简便计算题 4.7*11-4.7 28*6.3-6.3*184.8+5.2/4
4.7*11-4.7
=4.7*(11-1)
=4.7*10
=47
28*6.3-6.3*18
=6.3*(28-18)
=6.3*10
=63
4.8+5.2/4
=4.8+1.3
=6.1

3、脱式计算,能简算的要简算。(12分) 22.9-13.68+12.68 4.7×11-4.7 28.8×6.3-6.3×18.8 4.8+5.2÷4 5.37—(2.37-1

是三道题吗?
(1)4.7*11-4.7
=4.7*(11-1)
=47
(2)28*6.3-6.3*18
=6.3*(28-18)
=63
(3)4.8+5.2/4
=4.8+1.3
=6.1