问题
解答题
8.1×1.3-8×1.3+1.9×1.3+11.9÷1.36．
答案
8.1×1.3-8×1.3+1.9×1.3+11.9÷1.36，
=（8.1-8+1.9）×1.3+11.9÷1.36，
=2×1.3+8.75，
=2.6+8.75，
=11.35．
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8.1×1.3-8×1.3+1.9×1.3+11.9÷1.36．
8.1×1.3-8×1.3+1.9×1.3+11.9÷1.36，
=（8.1-8+1.9）×1.3+11.9÷1.36，
=2×1.3+8.75，
=2.6+8.75，
=11.35．