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• (1) 4×1÷1 =
• (2) 17-9-2 =
• (3) 4÷2-1 =
• (4) 11×1×4 =
• (5) 10+69×2 =
• (6) 5÷1×8 =
• (7) 39×8-51 =
• (8) 3×3×1 =
• (9) 38×125×8×3=
• (10) 54×9-387 =
• (11) 24-9+97 =
• (12) 54×5-178 =
• (13) 4÷1×6 =
• (14) 14+26-34 =
• (15) 23×8+93 =
• (16) 6÷1+39 =
• (17) 90+56+65 =
• (18) 13+59+96 =
• (19) 36×8-192 =
• (20) 3÷1-1 =
• 35×2×5=35×(2×___)
• (60×25) ×4=60×(___×4)
• (125×5) ×8=(___×___)×5
• (3×4) ×5×6=(__×__)×(__×__)。
• 25×17×4
• (1) 4×1÷1 =
• (2) 17-9-2 =
• (3) 4÷2-1 =
• (4) 11×1×4 =
• (5) 10+69×2 =
• (6) 5÷1×8 =
• (7) 39×8-51 =
• (8) 3×3×1 =
• (9) 38×125×8×3=
• (10) 54×9-387 =
• (11) 24-9+97 =
• (12) 54×5-178 =
• (13) 4÷1×6 =
• (14) 14+26-34 =
• (15) 23×8+93 =
• (16) 6÷1+39 =
• (17) 90+56+65 =
• (18) 13+59+96 =
• (19) 36×8-192 =
• (20) 3÷1-1 =
• 35×2×5=35×(2×___)
• (60×25) ×4=60×(___×4)
• (125×5) ×8=(___×___)×5
• (3×4) ×5×6=(__×__)×(__×__)。
• 25×17×4 =
26×2= 180÷9= 180×11= 3000÷5=
2.4+0.8= 60-1.6= 11.2-1.0= 14+1.7=
5.9-2.4= 3.6+13= 80×5÷2= 30-30÷5=
2.递等式计算,怎样简便就怎样算。(18分)
3.67+0.7-1.38 (135-87) ÷(22-9) 73+3.4+27+5.6
72×125 7.25-3.42-1.58 99×38+38
26×2= 180÷9= 180×11= 3000÷5=
2.4+0.8= 60-1.6= 11.2-1.0= 14+1.7=
5.9-2.4= 3.6+13= 80×5÷2= 30-30÷5=
2.递等式计算,怎样简便就怎样算。(18分)
3.67+0.7-1.67 (135-87) ÷(22-9) 73+3.4+27+5.6
72×125 7.25-3.42-1.58 99×38+38
1、1.28×25+41×1.28+34×1.28
2、1.25×25×0.4×8
3、
34.5×15= 15.6×12= 13.5×0.03= 8.25×1.4=
1.35×12= 11.2×1.5= 11.4×0.03= 2.13×1.4=
• (2) 17-9-2 =
• (3) 4÷2-1 =
• (4) 11×1×4 =
• (5) 10+69×2 =
• (6) 5÷1×8 =
• (7) 39×8-51 =
• (8) 3×3×1 =
• (9) 38×125×8×3=
• (10) 54×9-387 =
• (11) 24-9+97 =
• (12) 54×5-178 =
• (13) 4÷1×6 =
• (14) 14+26-34 =
• (15) 23×8+93 =
• (16) 6÷1+39 =
• (17) 90+56+65 =
• (18) 13+59+96 =
• (19) 36×8-192 =
• (20) 3÷1-1 =
• 35×2×5=35×(2×___)
• (60×25) ×4=60×(___×4)
• (125×5) ×8=(___×___)×5
• (3×4) ×5×6=(__×__)×(__×__)。
• 25×17×4
• (1) 4×1÷1 =
• (2) 17-9-2 =
• (3) 4÷2-1 =
• (4) 11×1×4 =
• (5) 10+69×2 =
• (6) 5÷1×8 =
• (7) 39×8-51 =
• (8) 3×3×1 =
• (9) 38×125×8×3=
• (10) 54×9-387 =
• (11) 24-9+97 =
• (12) 54×5-178 =
• (13) 4÷1×6 =
• (14) 14+26-34 =
• (15) 23×8+93 =
• (16) 6÷1+39 =
• (17) 90+56+65 =
• (18) 13+59+96 =
• (19) 36×8-192 =
• (20) 3÷1-1 =
• 35×2×5=35×(2×___)
• (60×25) ×4=60×(___×4)
• (125×5) ×8=(___×___)×5
• (3×4) ×5×6=(__×__)×(__×__)。
• 25×17×4 =
26×2= 180÷9= 180×11= 3000÷5=
2.4+0.8= 60-1.6= 11.2-1.0= 14+1.7=
5.9-2.4= 3.6+13= 80×5÷2= 30-30÷5=
2.递等式计算,怎样简便就怎样算。(18分)
3.67+0.7-1.38 (135-87) ÷(22-9) 73+3.4+27+5.6
72×125 7.25-3.42-1.58 99×38+38
26×2= 180÷9= 180×11= 3000÷5=
2.4+0.8= 60-1.6= 11.2-1.0= 14+1.7=
5.9-2.4= 3.6+13= 80×5÷2= 30-30÷5=
2.递等式计算,怎样简便就怎样算。(18分)
3.67+0.7-1.67 (135-87) ÷(22-9) 73+3.4+27+5.6
72×125 7.25-3.42-1.58 99×38+38
1、1.28×25+41×1.28+34×1.28
2、1.25×25×0.4×8
3、
34.5×15= 15.6×12= 13.5×0.03= 8.25×1.4=
1.35×12= 11.2×1.5= 11.4×0.03= 2.13×1.4=
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