(完整版)小学整数、小数四则运算50题附答案

整数、小数四则运算、简便运算题

175－75÷25 68＋35×13　725－（125＋237）=175-3 =68+455 =725-362

=172 =523 =363

（114＋166）÷35 432÷（9×8）189－60＋40

=280÷35 =432÷72 =129+40

=8 =6 =169

216＋305÷5 47＋236＋64 5+25×44

=216+61 =47+(236+64) =5+25×(40+4)

=277 =47+300 =5+25×40+25×4

=347 =5+1000+100

=1105

102×99 8+2×125 645-180-245

=102×(100-1) =8+250 =645-245-180

=102×100-102 =258 =400-180

=10200-102 =220

=10098

382×101-382 4×60×50×8 35×8+35×6-4×35

=382×(101-1) =(4×50) ×(60×8) =35×(8+6-4)

=382×100 =200×480 =35×10

=38200 =96000 =350

0.175÷0.25×4 0.175÷0.25÷0.4 200÷［（172－72）÷25］=0.7×4 =0.175÷(0.25×0.4) =200÷[100÷25]

=2.8 =0.175÷0.1 =200÷4

=1.75 =50

630×［840÷（240－212）］800÷25 2000÷125

=630×[840÷28] =800÷100×4 =2000÷1000×8 =630×30 =8×4 =2×8

=18900 =32 =16

25×63×4 9000÷125 99×11

=(25×4) ×63 =9000÷1000×8 =(100-1) ×11

=100×63 =9×8 =1100-11

=6300 =72 =1089

794－198 68×25 72×125

=794-200+2 =17×4×25 =9×8×125

=594+2 =17×(4×25) =9×(8×125)

=596 =17×100 =9×1000

=1700 =9000

97×360＋3×360 124×25－25×24

=360×(97+3) =25×(124-24)

=360×100 =25×100

=36000 =2500

2800÷ 100＋789 75÷〔138÷（100-54）〕85×(95－1440÷24) =28+789 =75÷[138÷46] =85×(95-60)

=817 =75÷3 =85×35

=25 =2975

240×78÷（154-115）80400－(4300＋870÷15) 1437×27＋27×563 =240×78÷39 =80400-(4300+58) =27×(1437+563) =240×(78÷39) =80400-4358 =27×2000

=240÷2 =76042 =54000

=480

[75-（12+18）]÷15 (6.8-6.8×0.55)÷8.5 7.2÷0.8-1.2×5

=[75-30] ÷15 =(6.8-3.74) ÷8.5 =9-6

=45÷15 =3.06÷8.5 =3

=3 =0.36

0.12× 4.8÷0.12×4.8 95÷（64-45） 6.5×（4.8-1.2×4）

=(0.12÷0.12) ×4.8×4.8 =95÷19 =6.5×(4.8-4.8)

=1×4.8×4.8 =5 =6.5×0 =0

=23.04

25×32×125 7300÷25÷4 8100÷4÷75

=(25×4) ×(125×8) =7300÷(25×4) =8100÷(4×75)

=100×1000 =7300÷100 =8100÷300

=100000 =73 =27

32×(25+125) 78×101－78 84×36+64×84

=4×8×25+4×8×125 =78×(101-1) =84×(36+64)

=800+4000 =78×100 =84×100

=4800 =7800 =8400

98×199 75×99+2×75 83×102－83×2 =98×(200-1) =75×(99+2) =83×(102-2)

=19600-98 =75×101 =83×100

=19502 =75×(100+1) =8300

=7500+75

=7575