On September 18th, the simple calculation of decimal operations passed the five-year decimal on September 18th (1) 3.9-4.1 + 6.1-5.9 (2) 35.6-1.8-15.6-7.2 (3) 19.625-(7.625-4.716) (4) 9.9+99.9+999.9+0.3(5) 12.5×8.8 (6) 24×9.9 (7) (2.5-0.

2025/04/1702:37:36 education 1904

Simple calculation of decimal operations on Friday, September 18th,

(1) 3.9-4.1+6.1-5.9 (2)35.6-1.8-15.6-7.2

（8） 23.5×5.67－23.5×5.66

(13) 15.6×13.1－15.6×2.1 （14） 28.9×4.68+4.68×61.1+46.8

（15） 6.66×1.2+3.33×7.6 （16）99×（9.3－3.7）+5.6

（17）(2.4+2.4+2.4+2.4) ×2×1.25 (18)4.65×32+2.5×46.5+0.465×430

(19) 0.65×10.1 (20) 8.43×6.8+8.43×2.7+9.5×1.57

On September 18th, the simple calculation of decimal operations passed the five-year decimal on September 18th (1) 3.9-4.1 + 6.1-5.9 (2) 35.6-1.8-15.6-7.2 (3) 19.625-(7.625-4.716) (4) 9.9+99.9+999.9+0.3(5) 12.5×8.8 (6) 24×9.9 (7) (2.5-0. - DayDayNews

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