7131714.4÷0.09=— ÷ — = — × — = 446892+29=1183860+170=— ÷ — = 60% ÷ — = 77216+70=7111690÷30=— + — = — × — = 879465-0.8=160.5×0.4=9 × — = 8 - — =578.8÷0.4= 7418.67+0.65=— + — = 9 - — = 8582.8-0.22= 91182.5÷0.01= — + — = — ÷ — = 829979.7-6=2448 ÷ 12 + 21 × 2 20%x - 13 = 61
2.2 + 0.5 + 7.8 + 9.5 0.25 × 3.2 × 0.125
10 : x = 40 : 2.9 2x - 0.5×3 = 8.5
( 3 — 1 8 2 + — + — )×90 5 9 1 — ÷ 33 + 6 — × 1 — 7 7 33 9 — × 8 — ÷ 9 — × 8 — 6 5 6 5 6 — : x = 1 — : 0.1 7 6 4 — + 1 — - 1 — + 8 — 5 9 5 9 4%x - 18 = 58 x - 4 — = 6 — 5 7 4 - 1 — - 8 — 9 9 5 — + 1 — - 1 — 4 9 4 5 — × 2 — × 6 — 6 3 5
5 11 1 89.5÷0.05= — ÷ — = — × — = 2 2 8 755+20= 13 4 1 500-400= — + — = 40% ÷ — = 3 3 3 10×80= 8 6 1 6940÷20= — × — = — ÷ — = 9 5 5 554-0.3= 6 30.4×0.4= 2 × — = 2 × — =7 49.6÷0.4= 9 8 44.85-0.05= — × — = 7 + — = 8 7 511.7÷0.09= 7 6 10 62-0.87= — + — = — + — = 8 5 9 76+0.05= 2484 ÷ 12 + 73 × 4 40%x + 27 = 52
4.2 + 3.7 + 5.8 + 6.3 25 × 3.2 × 125
2 : x = 80 : 8.2 8x - 0.5×9 = 6
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