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5.02除0.32 列竖式计算并验算

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5.02-3.5+ 0.98 =5.02+0.98-3.5 =6-3.5 =2.5

5.02×4.8=24.096 0.98÷0.28=3.5 8÷2.7≈2.96

脱式计算 15.6÷5÷0.2 =15.6÷(5×0.2) =15.6÷1 =15.6

①5.02×4.8=24.096. 5.0 2× 4.8 . 4 0 1 6 2 0 0 8 2 4.0 9 6②8÷2.7≈2.96 2.9 6 2 278 0 5 4 2 6 0 2 4 3 1 7 0 1 6 2 8 0 5 42 6

5.06×2.3=11.638; 5.0 6× 2.3 . 1 5 1 8 1 0 1 2 1 1.6 3 80.04×32.5=1.3; 0.0 4×3 2.5 . 2 0 8 1 2 .1.3 0 0 验算: 3 2.5×0.0 4 . 1.3 0 0 7.43×0.16=1.1888; 7.4 3×0.1 6 . 4 4 5 8 7 4 3 1.1 8 8 8 ;0.55×9.3=5.115. 0.5 5 × 9.3 . 1 6...

(1)5.06÷2.2=2.3, 2.3 2250.6 4 4 66 66 0;(2)4.5×0.18=0.81, 4.5 ×0.18 3 604 50.8 10;(3)1.52÷22=0.06?9?0, 0.0690909…221.52 1 32 200 198 200 198 200 198 2;(4)70.3×3.6≈253.1 70.3 × 3.6421 8210 9 253.08.

5.06÷2.2=2.3; 2.3 22 50.6 44 66 66 0 4.5×0.18=0.81; 4.5 × 0.18 . 360 45 0.810 1.68×3.2=5.376; 1.68 × 3.2 . 336 504 5.376 1.52÷22≈0.07; 0.069 22 1.52 132 200 198 2 703×3.6=2530.8; 703 × 3.6 . 4218 2109 2530.8 29.9÷0.46=65...

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