20 на прибавление -
1.7800+2200
2.1273+3825
3.569+483
4.9453+7453
5.8352+44
6.800+400
7.888+122
8.1320+632
9.1000+9000
10.648+352
11.70+60
12.3100+9638
13.6492+7483
14.3937538+4732517
15.9643213+1221123
16.160532121+121935673
17.345+346
18.999+1111
19.745+372
20.355+374
На деление:
1.120:4
2.42:3
4.356:4
5.484:2
6.14688:36
7.1409:7
8.9331:31
9.24000:800
10.5180:140
11.123123:123
12.56088:456
13.67176:311
14.2700:90
15.18600:24
16.999:333
17.754:2
18.648:2
19.9612:3
20.3204:2
На умножение:
1.46х63
2.42х26
3.72х64
4.68х59
5.99х99
6.37х26
7.83х62
8.65х72
9.99х46
10.99х3
11.57х4
12.705х32
13.547х45
14.759х34
15.583х62
16.648х372
17.946х437
18.538х528
19.548х849
20.2839х2859