71115— + — = — + — = 22561713 — + — = 40% × — =334 4111— × — = — + — = 37271063 × — = 4 + — = 97116— ÷ — = 3 ÷ — = 8976618— + — = — × — = 75892717 ÷ 13 + 31 × 9 8%x1.5×0.8=89-27= 820-120=15×60=900÷50=23+0.3=0.9×0.7=8.5÷0.5= 3.4-0.73=1.4×0.9=39.2+9=39.5-9=- 23 = 46
7.7 + 9.8 + 2.3 + 0.2 2.5 × 0.32 × 0.1252 : x = 5 : 4.2 3x - 0.5×6 = 7
( 2 — 1 8 3 + — + — )×108 4 9 1 — ÷ 54 + 8 — × 1 — 9 9 54 5 — × 2 — ÷ 5 — × 2 — 2 7 2 7 2 — : x = 4 — : 0.8 3 5 6 — + 1 — - 1 — + 1 — 7 2 7 2 80%x + 27 = 58 x - 9 — = 1 — 8 3 2 - 1 — + 7 — 8 8 7 — + 1 — - 1 — 6 9 6 2 — × 2 — × 3 — 3 13 2
5 11 1 1195+10= — ÷ — = — ÷ — = 4 4 9 295+45= 17 1 4 930+460= — ÷ — = 35% ÷ — = 9 9 3 28+40= 4 4 1 7840÷20= — ÷ — = — × — = 3 3 4 871+0.8= 1 30.8×0.7= 5 - — = 4 - — =5 27.7÷0.7= 2 1 64.55+0.64= — ÷ — = 5 × — = 3 8 72.7-0.13= 5 1 3 31.4×0.7= — × — = — × — = 6 5 4 41.6×0.3= 2484 ÷ 12 + 76 × 5 50%x - 12 = 60
6.6 + 7.2 + 3.4 + 2.8 2.5 × 32 × 125
4 : x = 20 : 1.8 3x - 0.5×3 = 10
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