( 2 — 113+ — + — )×10849 1 —÷ 29 + 5 —× 1 — 6 6299 —× 4 —÷ 9 —× 4 — 27271 — : x= 2 — : 0.9 7 3 7 —+ 1 —- 1 —+ 2 — 8383 50%x- 19 =42 x- 6 —= 1 — 56 5- 1 —+ 2 — 334 —+ 5 —- 1 — 3431 —× 2 —× 2 — 271
5 5 1 3 — ÷ — = — × — = 8 8 5 4 17 4 6 — + — = 65% + — = 3 3 7 5 8 1 1 — + — = — × — = 6 7 6 8 1 2 3 + — = 7 ÷ — = 6 3 1 1 1 — × — = 4 + — = 8 6 8 5 1 2 6 — ÷ — = — ÷ — = 4 7 3 5 1326 ÷ 13 + 12 × 8 2%x 6+0.39=83-44= 920+320= 11×70=450÷30=75+0.3=0.75×0.8= 4.4÷0.4= 8.16+0.53=5-0.25=493-20=1-0.38= + 23 = 49 7 + 1.8 + 3 + 8.2 25 × 0.32 × 12.5 8 : x = 20 : 1.6 9x - 0.5×3 = 6.5
( 2 — 4 1 3 + — + — )×90 5 6 1 — ÷ 35 + 3 — × 1 — 4 4 35 7 — × 8 — ÷ 7 — × 8 — 4 7 4 7 1 — : x = 7 — : 0.7 4 6 7 — + 1 — + 1 — + 3 — 8 4 8 4 10%x - 11 = 48 x ÷ 4 — = 1 — 3 7 5 - 1 — + 6 — 7 7 7 — + 1 — - 1 — 6 6 6 2 — × 2 — × 3 — 3 19 2
7 5 1 618.9÷0.07= — + — = — × — = 2 2 6 576-13= 16 8 1 770-410= — ÷ — = 45% ÷ — = 3 3 5 17×30= 5 1 1 7980÷70= — + — = — ÷ — = 4 2 5 694-0.2= 1 10.2×0.3= 4 × — = 5 ÷ — =9 28.4÷0.7= 1 9 45.8+0.07= — ÷ — = 6 + — = 3 8 315.3÷0.09= 4 1 1 61.1×0.7= — + — = — + — = 3 7 5 5779-46= 2814 ÷ 14 + 49 × 6 20%x + 21 = 76
5.4 + 9 + 4.6 + 1 25 × 32 × 1.25
8 : x = 50 : 1.1 7x - 0.5×5 = 9
( 4 — 1 10 3 + — + — )×108 4 9 1 — ÷ 11 + 2 — × 1 — 3 3 11 1 — × 4 — ÷ 1 — × 4 — 2 9 2 9 6 — : x = 6 — : 0.5 5 5 3 — + 1 — + 1 — + 8 — 4 9 4 9 5%x - 21 = 39 x ÷ 1 — = 1 — 6 5 4 - 1 — - 8 — 9 9 7 — + 5 — + 1 — 6 3 6 7 — × 2 — × 8 — 8 11 7
5 13 1 48-0.11= — ÷ — = — ÷ — = 8 8 7 584-41= 19 1 4 500-300= — - — = 80% ÷ — = 9 9 3 11+10= 7 1 1 4500÷20= — ÷ — = — ÷ — = 6 2 6 340-0.3= 1 60.9×0.2= 7 - — = 7 × — =6 76÷0.5= 1 1 15.15-0.85= — + — = 7 + — = 4 4 520÷0.08= 3 1 9 469.4-2= — ÷ — = — × — = 4 2 8 3520-39= 1768 ÷ 17 + 34 × 6 10%x + 18 = 49
9.5 + 5.8 + 0.5 + 4.2 2.5 × 0.32 × 125
6 : x = 40 : 3.6 2x + 0.5×7 = 6
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