513161.7×0.6=— + — = — ÷ — = 885598+12=1312600+470=— + — = 70% ÷ — = 55328+40=3119840÷60=— ÷ — = — ÷ — = 434816+0.8=160.6×0.1=2 + — = 5 ÷ — =557.8÷0.1= 1117.25+0.45=— × — = 7 - — = 7831.7×0.8=66985.4+0.25= — × — = — ÷ — = 578779.9-8=1212 ÷ 12 + 44 × 4 10%x + 11 = 61
7.5 + 6.2 + 2.5 + 3.8 2.5 × 0.32 × 0.125
8 : x = 2 : 3.2 3x + 0.5×5 = 10
( 1 — 1 1 2 + — + — )×48 4 6 1 — ÷ 15 + 2 — × 1 — 3 3 15 5 — × 8 — ÷ 5 — × 8 — 2 7 2 7 1 — : x = 1 — : 0.5 7 4 2 — + 6 — + 1 — + 1 — 3 7 3 7 25%x - 11 = 70 x × 1 — = 4 — 8 3 7 - 1 — + 4 — 5 5 6 — + 1 — + 1 — 5 6 5 1 — × 2 — × 2 — 2 15 1
5 5 1 18-0.22= — + — = — × — = 8 8 4 292+14= 17 1 1 670-140= — ÷ — = 80% ÷ — = 5 5 8 26+90= 3 1 1 7720÷60= — ÷ — = — ÷ — = 4 7 2 814-0.6= 9 10.8×0.5= 9 × — = 2 + — =8 86÷0.5= 4 4 18.91-0.09= — ÷ — = 8 × — = 5 5 76.1+0.11= 5 6 6 71.3×0.9= — × — = — × — = 4 7 7 611.2÷0.08= 1166 ÷ 11 + 47 × 6 20%x - 25 = 57
2.1 + 0.8 + 7.9 + 9.2 0.25 × 3.2 × 12.5
4 : x = 8 : 2.3 3x - 0.5×5 = 7.5
( 4 — 1 1 3 + — + — )×108 4 9 1 — ÷ 27 + 8 — × 1 — 9 9 27 3 — × 2 — ÷ 3 — × 2 — 4 7 4 7 1 — : x = 5 — : 0.4 8 4 6 — + 7 — - 1 — + 1 — 7 8 7 8 40%x - 14 = 58 x ÷ 1 — = 1 — 4 5 7 - 1 — + 7 — 8 8 10 — + 1 — + 1 — 9 4 9 5 — × 2 — × 6 — 6 19 5
7 5 1 11.9×0.3= — ÷ — = — + — = 2 2 9 693+23= 11 2 5 870-180= — - — = 30% ÷ — = 5 5 4 24+10= 4 1 1 4850÷50= — + — = — ÷ — = 5 5 8 327+0.6= 1 50.25×0.4= 7 ÷ — = 7 + — =4 43.8÷0.2= 7 1 66.4+0.2= — × — = 9 - — = 6 8 58.1+0.17= 9 1 10 92.5-0.12= — × — = — × — = 8 2 9 8417-48= 1248 ÷ 12 + 27 × 2 64%x + 14 = 46
5.8 + 0.9 + 4.2 + 9.1 2.5 × 0.32 × 12.5
6 : x = 8 : 6.9 8x - 0.5×5 = 9
( 1 — 4 5 2 + — + — )×60 5 6 1 — ÷ 39 + 3 — × 1 — 4 4 39 3 — × 6 — ÷ 3 — × 6 — 2 5 2 5 1 — : x = 4 — : 0.6 3 3 8 — + 3 — + 1 — + 1 — 9 4 9 4 80%x - 30 = 56 x ÷ 1 — = 3 — 3 4 5 - 1 — + 5 — 6 6 5 — + 5 — - 1 — 4 4 4 3 — × 2 — × 4 — 4 19 3
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