Problemas de aritmética oral para alumnos de quinto de primaria

14-7,4=6,6, 1,92÷0,04=48, 0,32×500=160, 0,65+ 4,35= 5

10-5,4=4,6, 4÷20=0,2, 3,5×200=700, 1,5-0,06=1,44

0,75÷15=0,05, 0,4×0,8= 0,32, 4×0,25=1, 0,36+1,54=2

1,01×99=99,99, 420÷35=12, 25×12=300, 135÷0,5=270

3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4

1/ 6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4

3/10 +1/5 = 1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1,5

0,51÷17=0,03, 32,8+19=51,8, 5,2÷1,3= 4, 1,6×0,4= 0,64

4,9×0,7=3,43, 1÷5=0,2, 6÷12=0,5, 0,87-0,49=0,38

1.(1+1 /2)(1+1/3)(1+1/4)......(1+1/100)

2.(1-1/2)(1-1 /3)(1-1/4)......(1-1/100)

3,8+2-8+2

4,25*4/25* 4

5.7.26-(5.26-1.5)

6.286+198

7.314-202

8.526+301

9.223-99

10.6.25+3.85-2.125+3.875

11.9-2456*21

12.0.5/11.5-4* 2.75

13.1/2×3/5

14.3.375+5.75+2.25+6.625

15.1001-9036÷18

16.3.8×5.25+14.5

17.2.1*4.3+5.7*2.1

18.30×1/3

19.102*45-328

20.2/3×12

21.2.8*3.1+17.6/8

22.3/5×5/6

23.(50 -12.5)/2.5

24.2/5×1/3

25.6110*47+639

26.1/2-1/6

27.3.5*2.7-52.2/18

28.1/7×1/5

29.3.375*0.97+0.97*6.625

30.25× 4/5

31.6.54+2.4+3.46+0.6

32.5/6-1/2

33.95.6*1.8+95.6*8.2

34.1/2×1/5

35.600-420/12

36.344/3.6-5.4*0.25

37.16/2+ 30/2+90/6

38.3001-1998.

39.5000-105*34

40.0.15/0.25+0.75*1.2

41.(1/2+1/3+1/4)*0.

24

42.(25+4)*4

43.300-4263/21

44.0.81/0.25+5.96

45.403÷13×27

46.1.5×4.2-0.75÷0.25

47.3.27×4 +3.27×5.7

48.(1.2+ 1.8 )×4.51025-768÷32

49.0.25×80-0.45÷0.9

50.1025-768÷32

51.0.25*2.69*4

52.2348+275*16

53.2/9*15/8-1/12*9/5

54.2.4+2.4*(5.375-3.375 )

55.645-45*12

56.0.15+1.2/0.24-0.45

57.3.75-(2.35+0.25/1.25)

58.76*1/4+23*25/100.25

59.10-2.87-7.13

60.0.96+9.6*9.9

61.7.5-5.7*1/3

62.12.37-3.25-6.75

63.16*6.8+2.2*16+16

64.401*19+ 284

65.58.7-16.65/3.7

66.0.4*4.7*2.5+(2.3+5.3)

67.9.31-1.125-7.875

68.64128*45

69.8.2*1.6-0.336/4.2

70.400*(0.62+0.08)

2/ 1*2=1 3/1*3=1 3/2*3=2 3/1*6=2

4/3*8=6 5/3*20=12 7/3 *14=6 8/7*40=35

4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14

30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18

5/8*90=144 99/98*99 =98 3/14*6=28 7/1*28=4

10/1*90=9 5/3*105=63 19/7*38=14 5/1*25= 5

8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8

9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18

Sin decimales

123+25=148 123-35=88 56×7 =392 135÷5=27

248+89=337 ...146-23=123 ...155×5=775 ...456-12=38 ...

456+45=501 ...546-457=89 ...45×10=451 ...564-12=47 ...

879+54=933 ... 896-546=350...56×12=672....45-5=9...

457+456=913...

7+14 =21 ...18-9=9 ...

8+16=24 ...25-5=20 ...

9+18=27.. .56-45=11...

120=30...45-23=22...

11+22=33...78-23 =55...

12+

24=36...

10-3=7

15-4=11

20-5=15

25 -6=19

30-7=23

35-8=27

40-9=31

45-10 =35

50-11=39

55-12=43

60-13=47

65-14=51

70-15=55

75-16=59

80-17=63

85-18=67

p>

90-19=71

95-20=75

100-21=79

105-22= 83

110-23=87

115-24=91

120-25=95

125-26=99

130-27=103

13+26=39...

14+28=42...

15+ 30=45...

16+32=48...

17+34=51...

18+36=54... .

19+38=57...

240=60...

21+42=63...

22+ 44=66...

23+46=69...

24+48=72...

25+ 50=75.. .

26+52=78 ...

27+54=81 ...

28+56=84 .. .

29+58=87...

360=90...

31+62=93...

32+ 64=96...

33+66=99...

5 ÷1 =5

10 ÷2 =5

15 ÷3 =5

20 ÷4 =5

25 ÷5 =5

30 ÷6 =5

35 ÷7 =5

40 ÷8 =5

45 ÷9 =5

50 ÷10 =5

55 ÷ 11 =5

60 ÷12 =5

65 ÷13 =5

70 ÷14 =5

75 ÷15 = 5

80 ÷16 5

85 ÷17 5

90 ÷18 5

95 ÷19 5

100 ÷20 5

2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3* 8=6 5/ 3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5* 27=15 2/1*30=15 12/7*24 =14 30/1 *30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8* 90=144 99/98*99=98 3/14*6= 28 7/1* 28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5 8/19* 16=38 61/60*122=120 7/2*28 =8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18

12 ÷3/5 = 12×(5/3)9÷6/7 = 9×(7/6)30÷5/6 = 30×(6/5)4×(3/2)= 4÷2/ 3(4)÷ 5/7 = 4×

7/5 3÷4/5 = 3×5/4(24)÷7/16 = 24×(15

2/1*2=1 3/1*3=1 3/2 *3=2 3/1*6=2

4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35

4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14

30/1*30=1 51/9*102 =18 19/9*76=36 4/9*8=18

5/8*90=144 99/98*99=98 3/14*6=28 7/1*28= 4

10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5

8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8

9/7*18=14 25/7*100=28 9/5*81=45 8 /9*16=18