
脱式计算,能简算的要简算. ①10962÷54-105 ②0.25×(4.8-7.5÷3) ③0.65+214+6.35+34
脱式计算,能简算的要简算.①10962÷54-105②0.25×(4.8-7.5÷3)③0.65+214+6.35+34④16×25÷(56-34)⑤9.07×93-9....
脱式计算,能简算的要简算. ①10962÷54-105 ②0.25×(4.8-7.5÷3) ③0.65+214+6.35+34 ④16×25÷(56-34) ⑤9.07×93-9.07+9.07×8 ⑥0.125×(5+0.8)+0.125÷13.
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①10962÷54-105,
=203-105,
=98;
②0.25×(4.8-7.5÷3),
=0.25×(4.8-2.5),
=0.25×2.3,
=0.575;
③0.65+2
1 |
4 |
3 |
4 |
=(0.65+6.35)+(2
1 |
4 |
3 |
4 |
=7+3,
=10;
④
1 |
6 |
2 |
5 |
5 |
6 |
3 |
4 |
=
1 |
6 |
2 |
5 |
1 |
12 |
=
1 |
15 |
1 |
12 |
=
4 |
5 |
⑤9.07×93-9.07+9.07×8,
=9.07×(93-1+8),
=9.07×100,
=907;
⑥0.125×(5+0.8)+0.125÷
1 |
3 |
=0.125×5+0.125×0.8+0.125×3,
=0.125×5+0.125×3+0.125×0.8,
=0.125×(5+3)+0.1,
=0.125×8+0.1,
=1+0.1,
=1.1.
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