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用你喜欢的方法计算下面各题.①23.8−79+6.2−119②37.5+12.5÷2.5×4③(79+23×56)÷415④(517+413)×13×17⑤125×3.2×25⑥777×7100+444×0.09+333×0.05.
题目详情
用你喜欢的方法计算下面各题.
①23.8−
+6.2−
②37.5+12.5÷2.5×4
③(
+
×
)÷
④(
+
)×13×17
⑤125×3.2×25
⑥777×
+444×0.09+333×0.05.
−
+6.2−
②37.5+12.5÷2.5×4
③(
+
×
)÷
④(
+
)×13×17
⑤125×3.2×25
⑥777×
+444×0.09+333×0.05.
7 7 9 9
11 11 9 9
(
+
×
)÷
④(
+
)×13×17
⑤125×3.2×25
⑥777×
+444×0.09+333×0.05.
7 7 9 9
2 2 3 3
5 5 6 6
4 4 15 15
(
+
)×13×17
⑤125×3.2×25
⑥777×
+444×0.09+333×0.05.
5 5 17 17
4 4 13 13
+444×0.09+333×0.05.
7 7 100 100
①23.8−
7 |
9 |
11 |
9 |
②37.5+12.5÷2.5×4
③(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
④(
5 |
17 |
4 |
13 |
⑤125×3.2×25
⑥777×
7 |
100 |
−
7 |
9 |
11 |
9 |
②37.5+12.5÷2.5×4
③(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
④(
5 |
17 |
4 |
13 |
⑤125×3.2×25
⑥777×
7 |
100 |
7 |
9 |
11 |
9 |
(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
④(
5 |
17 |
4 |
13 |
⑤125×3.2×25
⑥777×
7 |
100 |
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
(
5 |
17 |
4 |
13 |
⑤125×3.2×25
⑥777×
7 |
100 |
5 |
17 |
4 |
13 |
7 |
100 |
7 |
100 |
▼优质解答
答案和解析
(1)23.8−
+6.2−
,
=(23.8+6.2)-(
+
),
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
+
×
)÷
,
=(
+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111. −
7 7 79 9 9+6.2−
11 11 119 9 9,
=(23.8+6.2)-(
+
),
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
+
×
)÷
,
=(
+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 7 79 9 9+
),
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
+
×
)÷
,
=(
+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
11 11 119 9 9),
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
+
×
)÷
,
=(
+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111. (
7 7 79 9 9+
2 2 23 3 3×
5 5 56 6 6)÷
4 4 415 15 15,
=(
+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 7 79 9 9+
)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
5 5 59 9 9)÷
,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111. ÷
4 4 415 15 15,
=
÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
4 4 43 3 3÷
,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111. ÷
4 4 415 15 15,
=5;
(4)(
+
)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111. (
5 5 517 17 17+
4 4 413 13 13)×13×17,
=
×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
5 5 517 17 17×13×17+
×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
4 4 413 13 13×13×17,
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 7 7100 100 100+444×0.09+333×0.05,
=111×(7×
+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 7 7100 100 100+4×0.09+3×0.05),
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 |
9 |
11 |
9 |
=(23.8+6.2)-(
7 |
9 |
11 |
9 |
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
=(
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111. −
7 |
9 |
11 |
9 |
=(23.8+6.2)-(
7 |
9 |
11 |
9 |
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
=(
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 |
9 |
11 |
9 |
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
=(
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
11 |
9 |
=30-2,
=28;
(2)37.5+12.5÷2.5×4,
=37.5+5×4,
=37.5+20,
=57.5;
(3)(
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
=(
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111. (
7 |
9 |
2 |
3 |
5 |
6 |
4 |
15 |
=(
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 |
9 |
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
5 |
9 |
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111. ÷
4 |
15 |
=
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
4 |
3 |
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111. ÷
4 |
15 |
=5;
(4)(
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111. (
5 |
17 |
4 |
13 |
=
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
5 |
17 |
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
4 |
13 |
=65+68,
=133;
(5)125×3.2×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(6)777×
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 |
100 |
=111×(7×
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
7 |
100 |
=111×(0.49+0.36+0.15),
=111×1,
=111.
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