» » + 4 2021



+ 4 2021
+
4 2021 .
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³ -2021 4
-2021 4


1

вҠ1

  1. ?
930009
  1. 頳?
1/5
  1.  2200c=6600?
3
  1. ǒ糠.



  1. ǒ࠳.



  1. .
136 845-(93 465:3 +87578) =18 112
1) 93465:3= 31155
2) 31155+87578= 118733
3) 136 845- 118733 =18112
  1. 120 . 5 , 3. ?
  2. 5+3=8◠.
  3. 120:8 =15򠗠1.
  4. 15 3=45򠗠.
³:45.

вҠ2

  1. ?
570 007
  1. 頳?
1/10
  1.  54000:b=6000?
9
  1. ǒ砳.



  1. ǒ࠳.



  1. .
217 698+(89457-96584:8)= 295082
1) 96584:8= 12073
2) 89457- 12073= 77384
3) 217 698+ 77384=295082
  1. 245 . 4 , 3 . ?
  2. 4 + 3= 7⠗Ⳡ.
  3. 245:7= 35㠗 .
  4. 4 35=140㠗.
³: 140.

2

вҠ1

  1. , ?
8848
  1. Ӡ27639:9?
3071
  1. ຠ?
 
  1. ǒ砳.



  1. ǒ.
  2. .
13 269 +7387 젖11932= 8724.
1) 13269+7387=20656;
2) 20656 11932=8724.
  1. Ⳡ4600. 2 ?
  2. 600:4 =150젗1.
  3. 150:3 =50 1 1.
  4. 50 2= 100 12 .
³:12100.

вҠ2

  1. ʳ, ?
5895
  1. Ӡ39224:4?
9806
  1. ຠ?
  1. ǒ砳.



  1. ǒ.
  2. .
15 752+24148 㠖 27912= 11 988.
1) 15752+24148= 39900;
2) 3990027912=11988.
  1. 3 480 . 5?
  2. 480:3 =160 ࠗ 21 ;
  3. 160:2 = 80ࠗ 1 1 ;
  4. 80 5=400ࠗ1 5.
³:51 400.

3

вҠ1

  1. ,.
307563
  1. Ӡ3428:100?
34 (.28)
  1. 10 . , .
7/10
  1. ǒ x, .



  1. ǒ࠳.
  2. .
75048:12245 14 =2824.




























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  1. 35,50
. 340 . ?
  1. 35 + 50 =85⠗ .
  2. 340:85 =4 .
  3. 50 4=200젗.
³:200.

вҠ2

  1. ,.
506 428
  1. Ӡ5643:100?
 56(. 43)
  1. 12.?
7/12
  1. ǒ x, .



  1. ǒ࠳.




6.84 208 :1631815=493.




























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7. 380 . 40 , 36. ?
  1. 40+36=76𠗠.
  2. 380 :76=5 렗 .
  3. 365=180렗 .
³:180.

4

вҠ1

  1. ຠ?
70 000+ 7000 + 5
  1. ?
(30+30:3) 2
  1. 2?
 
  1. ǒ , .



  1. ǒ࠳.



  1. .
23 415:15 +707 11 =9338.




























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  1. 25 1 , 140 4 . 1800?
  2. 140:4 =35or. 21.
  3. 25 + 35 = 60 . 1 .3)1800 :60 =30.
³: 30.

вҠ2

  1. ຠ?
90000 +900 +3
  1. ?
(20 +20:2) 3
  1. 2?
  1. ǒ , .



  1. ǒ࠳.



  1. .
9918:29+ 31518 = 6012.


























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  1. 45 1 , 165 3 . 2000?
  2. 165:3 =55. 21 .
  3. 45 + 55 = 100 . 1 .3) 2000 :100=20.
³: 20.

5

вҠ1

  1. ?
605 605
  1. ?
300:(10+ 15)
  1. 2?
  1. ǒ,.



  1. ǒ.



  1. .
(13 524811223):25 16 = 79 376.
































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  1. , 920,⠗.
40 . ?
  1. 9203=2760(.) ;
  2. 920 + 2760 = 3680 (.) ;2)3680 :40 =92 (.).
³:92.

вҠ2

  1. Ⳡ?
702072
  1. ?
120 :(6+4)
  1. ?
  1. ǒ,.



  1. ǒ.



  1. .
1400:35+ 15243 =3685.
1) 1400 :35 =40;
2) 15243= 3645;
3)40+ 3645=3685.
  1. ³  840 , . 70 .?
  1. 8402=1680();
  2. 840+1680=2520();
  3. 2520:70=36 (.).
³:36 .

6

вҠ1

  1. 1/4 . ຠ?
15
  1. 20 , 300 . ?
 15/
  1. 20 , 6 . ?
4
  1. ǒ , , , .



  1. .
  2. 1 ?3 2 ?1 3 ?
  3. .
(132 418-418 7):66 =1962.
1) 418 7= 2926;
2) 132418-2926=12 9492;
12 9492:66 =1962.
  1. 1200 1 , 30 1 . 1000,?
  2. 1200:60=20.1.;
  3. 30 + 20 = 50 . 1 .;3) 1000 :50 =20 .
³:100020.

вҠ2

  1. ຠ1/3.ຠ?
20
  1. ,10,2.?
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  1. 16 , 3 . ?
5
  1. ǒ , , , .



  1. .
  2. 2 ?1 8?
2 1?
  1. .
(241 512-512 9):24 =9871.
1) 5129= 4608;
2) 241512-4608=236 904;
3) 236 904:24=9871.
  1. 1800 1 , 20 1 . 2000 , ?
  2. 1800:60=30. 1.;
  3. 30 + 20 = 50 . 1 .;3) 2000 :50 =40 .
³:200040.

7

вҠ1

  1. ,7?
2
  1. Ӡ?
12186 :6
  1. 1 1?
A1/10
  1. ǒ砳.



  1. ǒ.



  1. .
21210:35+74519=14761.




























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  • 4 6 8 , 336 . ³, . ?
  • 6 +8=14(.) 4.
  • 336:14=24(.) .
  • 824=192(.) .
³:192.

вҠ2

  1. ,20?
5
  1. Ӡ?
2456:8
  1. 11?
1/100
  1. ǒ砳.



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  1. .
235 1320982 :26 =2248.



























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  1. 126 ,216
. ³, . ?
  1. 12+6=18(.) ;
  2. 216:18=12 (.) ;
  3. 1212=144(.).
³:144.

8

вҠ1

  1. ຠ7570134?
 
  1. ?
  1. 6?
48 32=10 +
  1. ǒ𠳠.



  1. ǒ𠳠.



  1. .
23821 :(625542) 23 =6601.
1) 625542=83;
2) 23821 :83 =287;
3) 287 23= 6601.
  1. Ӡ174 15.2/5 , . ?
  2. 17415=2610 ;
  3. 2610:5 2= 1044㠗 ;
  4. 26101044=1566 .
³:1566.

вҠ2

  1. ຠ7217804?
  1. ?
  1. 8?
x7 =9842
  1. ǒ𠳠.



  1. ,.
  2. .
(1599+ 20050 :25) 63 =151 263.
1) 20050 :25 =802;
2) 1599 +802 =2401;
3)2401 63 = 151263.
  1. 95,21.ϳ 2/5 . ?
  2. 95 21= 1995 ;
  3. 1995:5 2= 798 ;
  4. 1995798=1197 㠗 .
³: 1197.

9

вҠ1

  1. .
13 338+(55045)21=23 943.
1) 55045=505;
2) 505 21= 10605;
3) 13338+ 10605= 23943.
  1. 䳿砳.
24 23젷7= 168 161=169 61
  1. :
1) 2400 :12 =200;
2) 324 :12 =27
a= 2175 :87
a= 25
  1. .
3 , 5 . ,140?
  1. 5 3 =2 () 140;
  2. 140 : 2 = 70 (/) ;3)703= 210().
³:210.
  1. , 242, ࠗ6.
1)24 :6=4젗 .

вҠ2

  1. .
13 268+(54037)23=24 837.
1) 54037=503;
2) 503 23= 11569;
3) 13268+ 11569= 24837.
  1. 䳿砳.
17 47젷 3= 51 141 = 5241.
  1. ...
1) 4500 :15 =300;
2) 195 :15 =13.
  1. 49b=1715.
b= 1715:49;
b= 35.
  1. . 糠6 , 4 . , 300?
  2. 6 4 =2 () 300 ;
  3. 300 : 2 = 150 (/) ;3)150 4= 600().
³:600.
  1. 1), 282,7.
28: 7=4젗.

10

вҠ1

  1. .
80 526(43275:25+ 21007)= 57788.
1) 43275:25=1731;
2) 1731+21007=22738;
3) 8052622 738= 57788.
  1. ...50 3 : 5 = 30;90 :3=30;
30 =30.
  1. 22 22 6 25. ?
  2. 24 䠖22 22=138;
  3. 6 25+138 =7 63 = 8 3.
  4. ...
: 91= 405;
=405 91;
= 36855.
  1. (30)6000. 쒿1 ?
1) 6000 :30 =200;
2) 200 :5 = 40;
3) 407= 280.
  1. 5 , 6 . 1/3 .?
1) 56= 302;
2)30:3=102;
3)3010= 202.
  1. 蠳,.
a+ab

вҠ2

  1. .
67 432(51735 :15+18006) =45 977.
1) 51735:15=3449;
2) 3449 +18 006=21455;
3) 6743221455= 45977.
  1. ...30 2 : 3 = 20;100 :5= 20;
20 =20.
  1. - 22 12 843.ຠ?
  2. 24 䠖22 12=148;
  3. 8 43 +1 48 =9 91 =1031.
  4. .
b:77= 309;
b= 30977;
b= 23 793.
  1. (30)璿2700.璿 ?
1) 2700 :30=90 ;
2)90:3 = 30;
3)307= 210.
  1. 8 , 5 .1/10 , . ?
1) 85= 402;
2) 40:10 = 4 2;
3) 404 =362.
  1. 蠳,.
a+a+c

11

вҠ1

  1. .
137 045(9465 3+ 42 578)=66 072.
1) 9465 3= 28395;
2) 28395+42578= 70973;
3) 137 045 70 973 =66072.
  1. 蠳.
55;5;15;5
  1. ...
k408926 =190809;
k= 190809 +408 926;
k= 599 735.
  1. a+a:19,a=5491.
5491 +5491 :19 =5491 +289= 5780.
  1. 3 10 , 15 . , ?
1) 3000 :10 =300;
2) 3000 :15 =200;
3) 200 +300 =500;
4) 3000 :500 =6 .
  1. 1).
Р= 3+3 +3 +3 =12 ;
S= 33 =92.
2) , . .
Р= 3+6 +3 +6 =18

вҠ2

  1. .
154 138+(83 45782924)=204427.
1) 8292 4= 33168;
2) 8345733168=50289;
3) 154 138+ 50289=204427.
  1. 蠳.
2;12;2; 22.
  1. .
p+ 27506= 121900;
p= 12190027506;
p= 94394.
  1. c c:17,c=6528.
6528 6528:17=6528 384=6144.
  1. 璿 6 30 , 20.?
1) 6000:30=200;
2) 6000:20=300;
3) 300 +200 =500;
4) 6000 :500 =12.
  1. 1).
Р= 2+2 +2 +2 =8;
S= 22 =42.
2) , . .
Р= 2+4 +2+4 =12 .

12

вҠ1

  1. .
18 550(5550+ 3198) :6= 17092.
1) 5550 +3198 =8748;
2) 8748 :6 =1458;
3) 185501458=17092.
  1. .
505; 5500;5505;55 005.
  1. ...
c:26 =927118;
c= (927118)26;
c= 80926;
c= 21034.
  1. .
205 50.[>]2055 .
20550 . >2055.
7 256< 70 256
7256<70 256
  1. 120 . ϳ 3/10 , , . ?
1) 120 3:10= 36;
2)120 :3 = 40;
3)1203640 =44.
  1. 2/3 , 22젳15.
1) 22 15= 330 2;
2) 330 2:3= 2202.
  1. 7 , 5 . OA.
7+5= 12.

вҠ2

  1. .
13 175+(2199974):7=13350.
1) 2199974=1225;
2) 1225 :7 =175;
3) 13175+ 175= 13 350.
  1. .
707; 7707;7770;70 770.
  1. .
b:73= 700+ 103;
b=(700+ 103) 73;
b=803 73;
b= 58 619.
  1. .
3321 <30 321
100 45 .> 1045 .
3321 <30321
10045.> 1045.
  1. 150 . 2/5 , , . ?
1) 1502:5= 60;
2) 150 :2 = 75;
3) 1506075 =15.
  1. 3/4 , 32젳25.
1) 3225= 800 2;
2) 800 3:4= 6002.
  1. 7 , 10 . OC.
7 +10= 17.

13

вҠ1

  1. .
11 748+6 (1789974)= 16638.
1) 1789974= 815;
2) 815 6= 4890;
3) 11748+ 4890=16638.
  1. :
1) 755 +45 =8 40;
2) 5򠖠5 =505 =45 =4 5 .
  1. 1750 , 1/8 . ?
1750 8= 14000 .
  1. 34050c= 1386:3.
c= 34050 1386:3;
c= 34050462;
c= 33588.
  1. 1 600 , 1 800 . , 100 50?
1)1600 +1800=3400 ;
2) 3400 :100 =34;
3)34 50= 1700 .
  1. , 6 , ..
1) 6 : 3 = 2 ;2)(6 +2) 2 =16 .
  1. 蠳.
a:3:7.

вҠ2

9572+(1783896) 7 = 15781.
1) 1783896= 887;
2) 887 7= 6209;
3) 9572 +6209 =15 781.
  1. :
1)88= 800 8= 792=7 92 ;
2)1245 +35 = 13 20.
  1. 12 500 , 1/6 . ?
12 5006 = 75000.
  1. x+1583=15030:5.
x= 15030:51583;
x= 30061583;
x= 1423.
  1. 1 700 , 1 300 . 볿 , 300 100볿?
1) 1700 +1300=3000 ;
2) 3000 :300 =10;
3)10100= 1000.
  1. , , ..
1) 3 2 = 6 ;2)(3 +6) 2 =18 .
  1. 蠳.
b:2:7.

14

вҠ1

  1. .
34 5389400 :(47+ 47)=34 438.
1)47+ 47 = 94;
2) 9400 :94 =100;
3) 34538100 =34 438.
  1. .
743:90= 8(. 23);
2140: 200 = 10(.140).
  1. .
300 =30;
7000 =7;
360 =6.
  1. 3/5 , 42195. ?
421953 :5 = 25317 = 25317 .
  1. .糠8/,
  2. 10 /. 2 . .
8 2 +10 2 =16 +20 =36.
  1. 糠6..
Р= 64= 24.
  1. 糠6..
a:5

вҠ2

  1. .
17 3213600 :(10+ 26)=17 221.
17 3213600 : 36= 17321 100 =17221.
  1. .
832 :20= 41(.12);
3140: 300 = 10(.140).
  1. .
3000 =3;
7000 . =70 ;
70 =7.
  1. 2/3 , 42195. ?
421952 :3 = 28130 = 28130 .
  1. . 5 /, 6 /. 3 . ?
53 +6 3= 15+18 =33.
  1. 糠4..
P= 44 = 16.
  1. 糠4..
b:3

15

вҠ1

  1. .
829 703 78150:30= 580182.
1)829 703 = 582787;
2) 78150:30=2605;
3) 582 7872605=580182.
  1. 䳿砳.
1) 6 28 + 3 43 = 10 11 ;2)1805 㠖968= 837.
  1. .
1) 84000 =840 100;
2) (24 +36):3<24 +36:3.
  1. ',.
y: 60= 120;
y=120 60;
y= 7200.
  1. 180 120 . 2/3 1/4 . ? ?
  2. 180:3 2=120㠗 .
  3. 120 : 4 = 30 .3) 12030= 90.
³:90.
  1. 120 . .
1) 120 :4= 30
2) 3030= 900 2
  1. ,.
43 28,28 30,2628,2812.

вҠ2

  1. .
356 207 21 800:40 = 73147.
1)356 207 = 73 692;
2) 21800:40= 545;
3) 73692545 =73 147.
  1. 䳿砳.
1) 4 32 3 56 = 36 ;2) 86 + 4 8= 134 .
  1. .
1)580 100 < 580000;
2) (32 +48):8<32 +48:8.
  1. ,.
70 x=8400;
x= 8400:70;
x= 120.
  1. 720 , 1/6 ,3/8 .
  2. ??
  3. 720:6 =120.
  4. 720 : 8 3 = 270 .3) 270120= 150.
³:150.
  1. 600 2. ,ࠗ40.
1) 600 :40 =15;
2) (40 +15)2= 110 .
  1. ,.
57 38,29 38,3824,3813.

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