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1、一、看誰算得又對又快。7X8 =7 X7 =8 XJ =56 + 7 =3X4 =6 X6 =5 X8 =24 + 20 =1 X1 =1X3=2X9 =43 + 24 =7X7 =8X9=9X7 =78 10 =7X9 =3X3=8X6 =73 10 =8X3 =9X5=4X4 =66 30 =二、計算。8 X7 + 6 =7X9+ 1 =8X9 13 =5X7 + 8 =3X9+ 6=5X8+ 15 =8X8 + 9 =7&+ 6=7X7 30 =7X5-2 =8X8-7=2X7+ 3 =三、在O里填上“ + ”“ ”或 “X”。506= 30903 = 6705 = 2302= 540
2、8 = 3250 5 = 25602= 4406= 10303 = 6四、()里最大能填幾。()X 7()X 78X ()11()X45 X()6X ()30五、把口訣補充完整。四八()三五()一七()7X9 =7X9 =8 X8 =63 + 3 =76 =3X6 =6X3 =11 + 10 =5X2 =6X1 =7X7 =13 + 10 =9X9 =8X9 =7X8 =67 44 =6 X6 =8X2 =6X7 =97 50 =8 X8 =7X5 =9X7 =84 30 =二、計算。8X7-5 =7X9 6=9X8 11 =1 X2 + 6 =6X5+ 8=7X6 2 =5 X3 9 =7
3、6 5=8X8 + 40 =2X7 + 8 =7X8+ 3=6X9 1 =三、在O里填上“” “ ”十或 “X”。30 7= 21801= 7603 = 3305= 850 9 = 4550 9 = 45601 = 510 5 = 6402 = 6四、()里最大能填幾()X8()X 99X ()37()X57 X()4X ()32五、把口訣補充完整。四八() 二八() 二九(8X9 =7X9=9X8 =52 9 =5X9 =56=2X2 =43 + 30 =5X2 =5X1=3X4 =22 + 23 =7X7 =9X7=9X9 =78 20 =56 =3X4=56 =65 10 =2X5 =8
4、X9=6X5 =86 30 =二、計算。8X7 + 2 =8X7- 1 =9X9+ 2 =9X3 + 3 =4X2 + 6=6XJ 14=3X5-7 =8X4-2=9X8 10=4X5 + 8 =4X7+ 2=2 6 8 =三、在O里填上“ + ”“ ”或 “X”。50 7= 35603 = 3902 = 7101 = 2406 = 2460 9 = 54901 = 8604= 10904= 13四、()里最大能填幾。()X8()X 69X ()46()X43 X()6X ()41五、把口訣補充完整。三八() 四七() 三七(8X9 =9X8 =8X9 =29 9 =6X4 =4X7 =2X3
5、 =15 + 50 =6 X6 =8X5 =3X1 =34 + 23 =9X9 =8X7 =8X9 =87 50 =5X4 =3X8 =6X5 =82 60 =8X7 =8X3 =9X8 =70 60 =二、計算。9 X9 6 =9X8 7=9X9+ 5 =5X8 + 2 =7X4+ 5=8X5 6 =4X5 + 7 =5X9+ 9=9X7+ 10 =8X5 + 6 =8X6 7=7X5 5 =三、在O里填上“” “ ”十或 “X”。90 7= 63801= 7905 = 4202= 480 8 = 64501= 5804= 4907= 16307= 10)二二( )四、()里最大能填幾()X
6、7()X 58X ()31()X67X()4X ()50五、把口訣補充完整。二四()一八(9X8 =8X9=9X8 =37 2 =2X5 =9X9=8X2 =15 + 50 =8X5 =3X2=8X8 =15 + 33 =7X8 =9X9=7X8 =69 20 =5X7 =4X8=3X2 =77 50 =2X7 =96=7X2 =75 50 =二、計算。9 X9 4 =9X7 1 =8X7+ 5 =8X3 + 9 =9&+ 1 =6X7+ 13 =6X7 + 9 =6X5+ 8=8X8 + 40 =3X4 5 =6X4+ 5=9X8+ 7 =三、在O里填上“ + ”“ ”或 “X”。506=
7、30706= 1801= 71O 5= 690 8 = 7290 8 = 72805= 3709= 16509= 14四、()里最大能填幾()X9()X 49X ()66()X44 X()4X ()16五、把口訣補充完整。五七() 四八()一九(9X7 =9X8=9X8 =14 9 =9X7 =7X2=8X9 =40 + 20 =3X8 =8X9=4X9 =41 + 10 =7X8 =9 X7 =8 XJ =69 24 =4X3 =6 X6 =6 X3 =74 60 =4X9 =5X7=3X7 =63 20 =二、計算。9X9-5 =8X8+ 5=8X9 13 =8X9 + 7 =7X7+ 1
8、 =7X8 10 =9X6-2 =6X4 9=9X8 10=7X7- 1 =3X9- 1 =9X8 8 =三、在O里填上“ + ”“ ”或 “X”。70 3= 21806 = 2602 = 4304= 710 8 = 8901= 9603= 3502 = 7207 = 9四、()里最大能填幾()X8()X 97X ()60()X 48 X()4X ()27五、把口訣補充完整。五六() 二六() 二四(8X9 =7 X8 =8 X8 =51 + 4 =8 6 =5X3=4X8 =46 + 10 =6 6 =3X8=36 =15 + 33 =8X7 =9X9=7X9 =79 11 =7X5 =2X
9、2=8X2 =92 20 =8 6 =2X3=36 =83 50 =二、計算。7X9-6 =9X7 + 4=8X8+ 10 =2X9 + 6 =9X2+ 9=4X8+ 8 =9X8-2 =5X7+ 1 =8X8-30 =8X4-2 =7X9-7=5X5- 1 =三、在O里填上“ + ”“ ”或 “X”。1O 2= 2603 = 3901= 8501 = 61O 9 = 9205= 10803= 5508= 13301= 4四、()里最大能填幾。()X8()X 78X ()40()X46 X()4X ()19五、把口訣補充完整。一九() 四九()三五(7X7 =9X7 =8X7 =79 + 9
10、=5X4 =2X2 =9X5 =27 + 50 =3X7 =7X7 =6X2 =20 + 40 =9X8 =7X8 =7X7 =67 22 =6X9 =2X3 =8X9 =91 30 =8X4 =9X9 =2X4 =72 10 =二、計算。8X8 + 6 =9X8-8=8X7 4 =9X4 + 9 =7X1 + 6=4X5+ 11 =3X9-2 =4X3 + 4=7X8 10 =3X4+ 1 =9X8-3=8X8 + 4 =三、在O里填上“” “ ”十或 “X”。70 5= 35806 = 2605= 11O 6= 750 5 = 25207= 14701 = 6505= 10501= 6四、
11、()里最大能填幾()X9()X 59X ()47()X44 X()6X ()10五、把口訣補充完整。一九() 三七() 三六(9X7 =7X7 =7X7 =48 + 2 =8X5 =2X2 =9X7 =17 + 30 =6 XJ =7X3 =7X7 =10 + 25 =7X9 =7X9 =8X7 =66 22 =9X3 =4X3 =5X9 =84 10 =7X7 =2X7 =8X7 =94 30 =二、計算。9 X9 8 =9X8+ 8=7X7 8 =2X8 + 2 =5X4+ 7=7X6 13 =5X4 8 =9X3+ 5=8X7+ 10 =5X7 + 6 =4X5 2 =3X7 2 =三、
12、在O里填上“ + ”或 “X”。50 8= 40902 = 7702 = 5402= 610 2 = 290 9 = 81605= 1902= 1110 3 = 4四、()里最大能填幾()X9()X 98X ()46()X55X()4X ()21五、把口訣補充完整。五七()二七() 六八(8X7 =8 X8 =7 X8 =76 + 7 =3X4 =5X2=7X1 =23 + 50 =1 X1 =8X9=3X9 =14 + 31 =7X7 =9X7=7X7 =97 32 =7X3 =4X9=6X5 =66 20 =7X9 =2X4=6X9 =99 20 =二、計算。8X8-8 =8X7+ 1 =
13、9X8 5 =6X5 + 2 =9&+ 3=8X9 13 =7X5 + 9 =5X4 + 4=8X8+ 20 =3X6-3 =7 6-7=9X6+ 5 =三、在O里填上“ + ”“ ”或 “X”。60 8= 48901= 8903 = 6201 = 3202 = 4303 = 9602= 4407= 11904= 13四、()里最大能填幾。()X7()X 88X ()69()X62 X()5X ()13五、把口訣補充完整。二四() 五九() 二九(7X7 =9X9 =7X8 =22 9 =8X2 =3X2 =5X1 =23 + 50 =2X9 =6X7 =8X9 =12 + 45 =8X8 =
14、8X7 =9X8 =86 15 =4X4 =7X9 =6X2 =88 30 =3X8 =2X6 =6X2 =90 40 =二、計算。8X9+ 1 =8X7-5=8X9+ 14 =6X2+ 1 =8X5+ 6=7X8+ 14 =6X5- 1 =8X8-5=6X7 30 =2X5 + 3 =7X8-2 =5X7 5 =三、在O里填上“” “ ”十或 “X”。202= 4702 = 5705 = 2706= 13401= 470 3 = 21604= 2708= 15601= 7四、()里最大能填幾()X 7()X 68X ()36()X58 X()5X ()45五、把口訣補充完整。三八()六九()
15、一五()8X7 =7X7 =7X8 =25 + 5 =2X5 =1 X7 =5 X3 =31 + 30 =5X6 =1 X5 =6X2 =12 + 54 =8X8 =8X7 =7X8 =86 21 =6X9 =5X6 =5X4 =86 20 =6X7 =4X4 =9X8 =93 30 =二、計算。9X8-2 =9X7 6=7X9 18 =6X9 + 9 =4X9 + 4=8X8 19 =6 X4 9 =4X8+ 3=8X7 30 =7X8 + 3 =3X7+ 8=6X8 5 =三、在O里填上“” “ ”十或 “X”。301 = 3605= 1704 = 3205= 710 6 = 650 7
16、= 35604= 2309= 12505= 10四、()里最大能填幾()X8()X 58X ()28()X67X()6X ()40五、把口訣補充完整。六七() 五九()一九(8 X8 =9X7=9X8 =23 + 8 =9X3 =7X2=7X4 =13 + 10 =4X8 =9 X6=7 X7 =55 + 13 =8X7 =8 X7 =8 X7 =78 42 =2X3 =6X6=9X4 =66 20 =4X3 =7X5=2X7 =85 10 =二、計算。8X8-5 =8X7 1 =8X7+ 7 =5X5+ 1 =1X7 + 4=8X7 14 =9X6 + 4 =7X7 8=6X8 10 =5
17、X9 3 =8X7 + 4=6X7 5 =三、在O里填上“ + ”“ ”或 “X”。202= 4806 = 2705 = 2401 = 570 7 = 4940 7 = 28701 = 6309= 12601= 7四、()里最大能填幾。()X8()X 78X ()73()X65X()6X ()47五、把口訣補充完整。七八() 六八() 六七(8 X8 =9X7 =8 X8 =12 + 7 =8X7 =9X5 =2X5 =31 + 10 =9X2 =2X1 =2X8 =40 + 55 =7X9 =9X8 =7X9 =88 11 =7X5 =7X3 =2X4 =77 30 =3X2 =9X3 =2
18、X5 =63 60 =二、計算。7X9- 1 =8X9+ 9=7 X8 + 8 =5X5 + 8 =2X3+ 6=4X5+ 6 =4X3 + 4 =4X9-2=6X7 10 =2X4-3 =4X4 8=4X7 4 =三、在O里填上“” “ ”十或 “X”。201 = 2701= 6701= 6405= 910 4 = 4305= 15804= 4202 = 4703= 10四、()里最大能填幾()X8()X 88X ()47()X63X()5X ()59五、把口訣補充完整。四九() 三九() 五五(9X7 =8 X8 =7 X8 =32 1 =3X7 =1X6=2X7 =15 + 20 =2X
19、5 =7X3=4X3 =11 + 34 =7X9 =7 X8 =8 X8 =66 41 =9X3 =2X2=9X8 =82 50 =6X5 =2X9=3X5 =90 60 =二、計算。8X8-8 =8X9+ 1 =7X9+ 14 =2X1 + 5 =1X8+ 1 =6XJ 4 =8X4+ 1 =8X9+ 2=8X7 30 =7X9-3 =7X4- 1 =4X9 6 =三、在O里填上“ + ”“ ”或 “X”。70 7= 49604 = 2901= 8304= 740 5 = 20205= 10905= 4406= 10409= 13四、()里最大能填幾()X 7()X 69X ()40()X5
20、6 X()6X ()55五、把口訣補充完整。四九()六九()五八()8X7 =8X8=9X9 =10 + 2 =1 X8 =2X5=8X1 =10 + 50 =8X2 =6 X8 =6 X2 =34 + 50 =9X7 =9X7=9X7 =97 34 =8X3 =8X5=5X9 =95 50 =8X5 =9X8=5X9 =90 60 =二、計算。9X7 + 2 =8X9+ 6=8X9+ 14 =2X3 + 5 =9&+ 1 =7X9 + 4 =3 X8 + 5 =9X9+ 9=9X7 40 =4X4-2 =5X8+ 7=2X8 + 4 =三、在O里填上“ + ”“ ”或 “X”。801 = 8
21、802 = 6801= 7603= 9304= 1210 2 = 2803= 5406= 10202 = 4四、()里最大能填幾。()X 8()X 97X ()72()X 69 X ()5X ()40五、把口訣補充完整。三九() 三五() 五五(8X9 =7X7 =7X7 =37 + 5 =8 X8 =7X2 =6 X6 =13 + 30 =3X1 =1 X9 =1 X5 =22 + 11 =9X7 =8 X8 =8 X8 =97 43 =6X5 =7X9 =5X6 =69 60 =5X5 =3X4 =3X6 =92 60 =二、計算。8X8 6 =9X5 4=7X8 5 =2X8 + 8 =1&+ 5=6X8+ 10 =4 X6 8 =7&+ 6=7X8+ 20 =9X4 + 3 =2X7+ 8=7X7 2 =三、在O里填上“ + ”或 “X”。40 5= 20903 = 6602 = 4202= 4504 = 20702= 14905= 4604= 10101= 2四、()里最大能填幾()X9()X 99X ()82()X42 X()6X ()33五、把口訣補充完整。一四() 三四()(7X9 =7X7=7X9 =12 3 =6X3 =3X5=1 X7 =44
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