内容正文:
人教版四年级数学下册第三单元《连减的简便运算》计算专项训练
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当评价:
1.直接写出得数
①150-50=
②200-80=
③320-120=
④450-250=
⑤180-90=
⑥260-160=
⑦380-180=
⑧500-200=
⑨160-70=
0290-190=
1①420-220=
2550-350=
13130-40=
1④240-140=
1⑤360-160=
⑥480-280=
①190-100=
18270-80=
19390-190=
20520-320=
2①140-60=
22250-150=
23370-170=
2④490-290=
25170-80=
26280-90=
2①400-100=
28530-230=
29120-30=
30230-130=
2.在圆圈里填上相应的运算符号。
①658-129-71=658-(129○71)②845-326-174=845○(326○174)
③736-(136+250)=736○136○250
④924-58-42=924-(58○42)
⑤567-289-111=567○(289○111)
⑥618-(118+345)=618○118○345
⑦489-156-44=489-(156○44)
⑧752-237-163=752○(237○163)
⑨834-(34+298=834○34○298
0596-145-55=596-(145○55)
①675-328-72=675○(328○72)
12917-(117+460=917○117○460
③458-279-21=458-(279○21)④726-189-111=726○(189○111)
1⑤843-(43+357)=843○43○357
6539-168-32=539-(168○32)
①694-256-144=694○(256○144)
⑧951-(51+289=951○51○289
9476-198-2=476-(198○2)
20782-315-85=782○(315○85)
3.列竖式计算
①456-123=
②578-245=
③692-357=
④734-289=
⑤851-416=
⑥925-568=
⑦483-197=
⑧627-349=
⑨756-288=
0813-456=
①942-579=
12538-269=
③674-385=
④791-426=
⑤865-518=
1⑥937-658=
①469-184=
18592-317=
19685-429=
20743-276=
2①826-538=
22914-657=
23547-283=
24668-395=
25781-496=
26853-574=
2①926-689=
28495-218=
29587-329=
30672-415=
4.简便方法计算
①728-44-56=
②387-(296+87)=
③174-48-52=
④457-(57+124)=
⑤624-75-124=
⑥893-288-112=
⑦814-(170+514)=
⑧470-22-33-45=
⑨745-152-148=
0489-(289+135=
①454-122-54-178=
12965-187-113=
13638-(138+275)=
①4542-69-31=
1⑤786-245-55=
6827-(127+350=
①659-198-2=
18913-326-174=
19576-(176+240=
20741-159-41=
参考答案
1.直接写出得数
①100
②120
③200
④200
⑤90
⑥100
⑦200
⑧300
⑨90
⑩100
①200
②200
1③90
4100
⑤200
1⑥200
①90
8190
1⑨200
20200
2①80
22100
23200
2④200
2590
26190
2⑦300
28300
2990
30100
2.在圆圈里和横线上填上相应的运算符号和数
①658-129-71=658-(129+71)②845-326-174=845-(326+174)
③736-(136+250=736-136-250
④924-58-42=924-(58+42
⑤567-289-111=567-(289+111)
⑥618-(118+345=618-118-345
⑦489-156-44=489-(156+44)
⑧752-237-163=752-(237+163)
⑨834-(34+298)=834-34-298
⑩596-145-55=596-(145+55)
①675-328-72=675-(328+72)
12917-(117+460=917-117-460
③458-279-21=458-(279+21)
④726-189-111=726-(189+111)
⑤843-(43+357)=843-43-357
6539-168-32=539-(168+32)
①694-256-144=694-(256+144)
18951-(51+289=951-51-289
9476-198-2=476-(198+2)
20782-315-85=782-(315+85)
3.列竖式计算
①456-123=333
②578-245=333
③692-357=335
④734-289=445
⑤851-416=435
⑥925-568=357
⑦483-197=286
⑧627-349=278
⑨756-288=468
0813-456=357
①942-579=363
12538-269=269
1③674-385=289
④791-426=365
1⑤865-518=347
16937-658=279
①469-184=285
⑧592-317=275
19685-429=256
20743-276=467
2①826-538=288
22914-657=257
23547-283=264
24668-395=273
25781-496=285
26853-574=279
2⑦926-689=237
28495-218=277
29587-329=258
30672-415=257
4.简便方法计算
①728-44-56=728-(44+56=728-100=628
②387-(296+87)=387-87-296=300-296=4
③174-48-52=174-(48+52=174-100=74
④457-(57+124)=457-57-124=400-124=276
⑤624-75-124=624-124-75=500-75=425
⑥893-288-112=893-(288+112=893-400=493
⑦814-(170+514)=814-514-170=300-170=130
⑧470-22-33-45=470-(22+33+45)=470-100=370
⑨745-152-148=745-(152+148)=745-300=445
⑩489-(289+135)=489-289-135=200-135=65
①454-122-54-178=(454-54)-(122+178=400-300=100
12965-187-113=965-(187+113)=965-300=665
13638-(138+275)=638-138-275=500-275=225
④542-69-31=542-(69+31)=542-100=442
1⑤786-245-55=786-(245+55)=786-300=486
6827-(127+350=827-127-350=700-350=350
⑦659-198-2=659-(198+2=659-200=459
8913-326-174=913-(326+174)=913-500=413
9576-(176+240=576-176-240=400-240=160
20741-159-41=741-(159+41)=741-200=541