516÷5210 4870300487300 56×995600
84÷3840÷30 -8℃-1℃ 9℃7℃
94999≈万 7909999999≈ 亿
95111≈万 7950000001≈亿
。
383,494,88,699,997,1004,571
① ×[0.75﹣( ﹣25%)]÷1.25
②6.37×1.25﹣1 +4.63×125%
③7.09× +0.225×6﹣60%×0.64
④ ×3+ ×25+ ×
⑤
⑥