简算4.5×25%+1.3×14+2.2×0.255.02-1.37-2.63716×40-516÷140.
+2.2×0.25
5.02-1.37-2.63
×40-÷.1 |
1 | 4 |
4 | ×40-÷.7 |
7 | 16 |
16 | ÷.5 |
5 | 16 |
16 | .1 |
1 | 40 |
40 |
答案和解析
4.5×25%+1.3×
+2.2×0.25,
=(4.5+1.3+2.2)×,
=8×,
=2;
5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
×40-÷,
=(-)×40,
=×40,
=5. 1 |
1 | 1
4 |
4 | 4+2.2×0.25,
=(4.5+1.3+2.2)×
,
=8×,
=2;
5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
×40-÷,
=(-)×40,
=×40,
=5. 1 |
1 | 1
4 |
4 | 4,
=8×
,
=2;
5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
×40-÷,
=(-)×40,
=×40,
=5. 1 |
1 | 1
4 |
4 | 4,
=2;
5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
×40-÷,
=(-)×40,
=×40,
=5. 7 |
7 | 7
16 |
16 | 16×40-
÷,
=(-)×40,
=×40,
=5. 5 |
5 | 5
16 |
16 | 16÷
,
=(-)×40,
=×40,
=5. 1 |
1 | 1
40 |
40 | 40,
=(
-)×40,
=×40,
=5. 7 |
7 | 7
16 |
16 | 16-
)×40,
=×40,
=5. 5 |
5 | 5
16 |
16 | 16)×40,
=
×40,
=5. 1 |
1 | 1
8 |
8 | 8×40,
=5.
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