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# 计算专项练习

52571224×= ×= 0.75×= ×= ×0.5= 736821139

5186345×0.75= 0.4×= × = ×= ×0.6= 94971699

13511412712[1–(+)]÷ –×÷3 （1–×）÷ ÷×7 488912565973

113315418232–（+） ×– +– [(1–)×]÷4 1244912255501533

(31524275311–)÷(+) [1–(+)]÷3.5 25÷(–) ++ 44834639586

1513321×[÷(+)] 12÷(1–) [(1–)×]÷4 2635755

51211351462 0.7×= ×= 15×= ×= ×= 6192457732511525110.5×= ×0.6= －= 6×= ×0.5= 3469812

1153334(–)×70 97× ×8+×2 15×+15× 55579677

1483251111435 (+–)×72 (+)×9+ 30×(–+) +×+ 294913365986133

111821668314–÷– 48×（–+） ÷9+× (+)×60–27 24325259545154

311182727452×（9+）– ÷+× +÷+ 42429383858

154510520.5＋= ×48= ×= ×= 11＋= 3121561167

511310.6×= 0.4×= ×0.4= 8×= 5×= 634410

318112724141312–×– 30×（+–） +÷+ ＋5.2×＋1÷ 42936583565334

0.25×12.5÷1198513 ×9999 [＋（2－0.5）÷]÷100.2 2032198650

511181 6.8×6.8＋4×6.8－6.8 +X = 2X– = 5.5x–3x = 1.75 1291895

23713131173X–1.4×2=1.1 X+–= X+ = X×（+）= 12218531068

4341525×= 0.875×= 39×= ＋0.125= 7－= 514133851954－0.5= 0.5×= 0.3＋= 0×= 10×= 6510125

4181136χ ÷5 = ÷χ = χ = X – 60% X =18 5253357

15323 X + 2.5×8=95 40%X+30=80 4χ+ χ= 9 χ-= 52855

153111??34 102×5.6－5.6×2 25× 13.09－8.12－4.88 321011112

1131023 ×[ ÷( )] ( ＋82591511 )×15×11 37.5＋19.5÷2.5×4

311523×= 4×= 0×= 4.2÷0.6= ×= 768113711111×16= 18×= 0.375×= 0.75×= ×0.25= 2932364.5?

13511412712[1–(+)]÷ –×÷3 （1–×）÷ ÷×7 488912565973

3121524131 (–)÷(+) [1–(+)]÷3.5 X×× = 4 ×x+×45 = 12 4454355639

855104522114×+÷ 18×（+） ×7+×5 （－）×24－ 151627996336125

544412115444（×+）÷ ÷[（+）×] （×+）÷ 7777535137777

12314÷3= 3÷0.6= ×= ×0.25= 9×= 23733111312××= 0.6÷3= ×2= 0.4÷= 0.25÷= 2347531141211111（－）×24－） ÷[（+）×] ６×－χ＝ 6125535131222

36855104571?100 χ－χ＝ ×+÷ 18×（+） 55151627996257

18979945717152×＋×＋ （＋－）÷ ÷2＋× 251625161696189511936

41317171 78×36＋7.8×741－7 ×17＋×8 ×＋0.125×＋0.5 82522112

3251+4.58×1－4÷3 25÷100 3426

1153142÷0.5= 6×= ÷10= 21÷= ×= 3367153

15571282014 ÷= ×15= －= ÷= 1－ = 1938203992715

511774438?1.25?1?580%?1.?25 27? 4???4 (1+)x? 5x－3?62010555

112231113141)?16+ ???15 ×58＋×41＋ 13?(??11 ) (?8881311827277157855104522114×+÷ 18×（+） ×7+×5 （－）×24－）1516279963361255444121115（×+）÷ ÷[（+）×] (32×＋17)÷ 777753513412

1161111937×= －= ＋ ÷＝ 14÷= 545341020825

31115189799(32×＋17)÷ （25＋）÷＋ ×＋×＋ 4122516251616444

145575515?）? 8x－×3＝ （x－6）×＝25 x:＝ （4461028124657592525543511316??? ??? 63?(??) [?(?)?]? 91212534569217823423

341945554（21×＋×21）× （99＋）÷9 ×÷ （＋）×30 77410568652.42÷

513251?= ?0.25= 3?= ?12= 3?8?= 434386

3321313912??= ??8 = 1?= ?= 20205959587 （51557592525144210?）? ??? ??? ÷[（＋）×] 12469121253456155311

113114＋3÷ χ＋＝ χ－χ＝12 χ＋10%χ＝110 324425

5699571144511－÷ 4－－ ×58＋×41＋ ××－ 8651051111885742

4523451577＋÷ ÷[（－）÷] 5X－3×= 56555828105

102 301-199= 0.24×300= 9÷3= 2.5+0.25= 9.5-9.5×0=

1131 - = 0.3÷6= 2.4× = 4.2÷ 3485 = 1.25×0.7×8=

341777121235 - 135÷18 5 ×153 – 0.6×53 （5＋4）÷3 ＋10 10 - 19- 19 + 19

3102153? 25× 13.09－8.12－4.88 12×103－4500÷75 3??32102217

1131023 ×[ ÷( × )] ( ＋ )×15×11 37.5＋19.5÷2.5×4 82591511

1?4333275512?53?1?? ??? ????? 3÷Ⅹ=3.5 858536181875?64?5

43513173?? ?? 3.14×8= ?= ÷ 622297516

1314?7? 52= 0.65× 1－40%= ?3? 8158

2862613213x??? x??12 87? x?7213545253486

51731512126??5???0.375? ? 24?(??) 61518861233597

52111393321(?)?(?) ×2＋2÷1 4.85×2＋4.85÷＋485 40×39 4169383339740

4234211119(1＋×3)÷2 5×3.5＋0.729× 80×÷× 59479880080030