4.44×9.8×2.5怎么简便计算?
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4.44×9.8×2.5
=1.11×4×(10—0.2)×2.5
=1.11×10×(10—0.2)
=11.1×(10—0.2)
=111—2.22
=108.78
=1.11×4×(10—0.2)×2.5
=1.11×10×(10—0.2)
=11.1×(10—0.2)
=111—2.22
=108.78
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4.44×9.8×2.5
=1.11×4×9.8×2.5
=1.11×(10-0.2)×4×2.5
=108.78
=1.11×4×9.8×2.5
=1.11×(10-0.2)×4×2.5
=108.78
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4.44×9.8×2.5
=4×1.11×9.8×2.5
=1.11×9.8×10
=1.11×98
=1.11×(100-2)
=111-2.22
=108.78
=4×1.11×9.8×2.5
=1.11×9.8×10
=1.11×98
=1.11×(100-2)
=111-2.22
=108.78
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4.44×9.8×2.5
=4.44×2.5×9.8
=4×1.11×2.5×9.8
=4×2.5×9.8×1.11
=10×9.8×1.11
=98×1.11
=(100-2)×1.11
=100×1.11-2×1.11
=111-2.22
=108.78
=4.44×2.5×9.8
=4×1.11×2.5×9.8
=4×2.5×9.8×1.11
=10×9.8×1.11
=98×1.11
=(100-2)×1.11
=100×1.11-2×1.11
=111-2.22
=108.78
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