( 1 — 172+ — + — )×48 46 1 —÷ 54 + 4 —× 1 — 5 5543 —× 4 —÷ 3 —× 4 — 83831 — : x= 9 — : 0.5 8 8 4 —+ 6 —- 1 —+ 1 — 575716%x+ 29= 70x× 1 —= 4 — 43 5- 1 —+ 1 — 226 —+ 1 —- 1 — 5859 —× 2 —× 10 — 10219
5 13 1 3453-25= — ÷ — = — ÷ — = 2 2 5 492+23= 19 4 3 530-330= — ÷ — = 45% ÷ — = 9 9 4 13×80= 8 3 1 1930÷30= — × — = — ÷ — = 7 2 6 475-0.1= 1 40.25×0.8= 9 ÷ — = 3 ÷ — =8 36÷0.5= 10 5 17.4-0.15= — + — = 9 - — = 9 4 94-0.29= 2 1 1 189.7-8= — ÷ — = — × — = 3 5 7 9606+45= 1442 ÷ 14 + 82 × 6 50%x + 16 = 44
3.2 + 7.6 + 6.8 + 2.4 250 × 3.2 × 1.25
8 : x = 32 : 6.7 4x + 0.5×4 = 7
( 3 — 1 7 2 + — + — )×48 4 6 1 — ÷ 34 + 2 — × 1 — 3 3 34 5 — × 6 — ÷ 5 — × 6 — 2 9 2 9 1 — : x = 2 — : 0.9 7 3 3 — + 1 — + 1 — + 3 — 4 4 4 4 20%x - 26 = 46 x ÷ 8 — = 1 — 7 7 3 - 1 — - 1 — 2 2 5 — + 5 — - 1 — 4 9 4 7 — × 2 — × 8 — 8 7 7
7 11 1 25-0.26= — ÷ — = — ÷ — = 6 6 8 356+44= 19 2 1 940-120= — - — = 15% × — = 5 5 6 27+50= 8 6 1 1960÷60= — ÷ — = — × — = 7 7 9 282-0.8= 7 10.65×0.3= 5 × — = 2 - — =8 37.5÷0.3= 1 6 17.91+0.04= — × — = 4 ÷ — = 3 5 711.2÷0.07= 3 4 6 418.4÷0.08= — × — = — + — = 4 5 5 37.2+0.11= 3312 ÷ 16 + 90 × 7 25%x + 12 = 61
5.7 + 4.4 + 4.3 + 5.6 250 × 32 × 125
10 : x = 2 : 8.7 2x + 0.5×8 = 5.5
( 1 — 1 10 2 + — + — )×72 4 9 1 — ÷ 16 + 5 — × 1 — 6 6 16 5 — × 8 — ÷ 5 — × 8 — 8 5 8 5 7 — : x = 1 — : 0.8 6 3 5 — + 7 — + 1 — + 1 — 6 8 6 8 10%x - 14 = 49 x - 9 — = 1 — 8 8 7 - 1 — + 8 — 9 9 5 — + 1 — - 1 — 4 3 4 5 — × 2 — × 6 — 6 9 5
1 11 1 91.3-0.28= — ÷ — = — ÷ — = 2 2 5 861+11= 11 2 8 720-160= — + — = 40% ÷ — = 5 5 7 23×90= 2 1 1 4520÷40= — × — = — ÷ — = 3 2 3 526+0.5= 6 60.8×0.2= 2 × — = 5 - — =5 58.1÷0.1= 1 3 26.76-0.1= — ÷ — = 9 × — = 7 4 310.5÷0.07= 5 1 1 5689-18= — × — = — ÷ — = 6 2 7 67.2÷0.03= 3135 ÷ 15 + 36 × 6 25%x - 16 = 57
7.2 + 4.1 + 2.8 + 5.9 250 × 32 × 125
10 : x = 2 : 4.3 2x - 0.5×2 = 8
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