Simple calculation of thinking questions 11 × 25 out of 24 and 17 × 98 out of 50

Simple calculation of thinking questions 11 × 25 out of 24 and 17 × 98 out of 50

11 / 24 × 25
=11/24x(24+1)
=11+11/24
=11 and 11 / 24
17 / 50 × 98
=17/50x(100-2)
=17x2-17/25
=33 and 8 / 25

18 / 11 times 24 times 9 / 2 calculation process

Original formula = 18 / 11x9 / 2X24
=18/11x9x12
=1944/11

Three, five, eleven, seven are 24?

（-5）×（-11）-3×7 = 24

-3 - 11 5 7 how to calculate 24 o'clock?

7*（-11）=-77
-77+5=-72
（-72）/（-3）=24
Put together: (7 * (- 11) + 5) / (- 3) = 24

1, 6, 11 and 13 are 24

1:(1 + 11 × 13) ÷ 62:(1 + (11 × 13)) ÷ 63:(1 + 13 × 11) ÷ 64:(1 + (13 × 11)) ÷ 65:(11 × 13 + 1) ÷ 66:((11 × 13) + 1) ÷ 67:(13 × 11 + 1) ÷ 68:((13 × 11) + 1) ÷ 6

1.7.13.13; 1.5.11.11; 24

（13×13－1）÷7＝24
（11×11－1）÷5＝24

Simple calculation of (4 × 7 × 11 × 13) △ 11 △ 13

(4×7×11×13)÷11÷13
=4×7×11×13×1/11×1/13
=28

13 and 4 / 11 - (2 and 2 / 3-7 / 11) what can be calculated simply should be calculated simply

13 and 4 / 11 - (2 and 2 / 3-7 / 11)
=13 and 4 / 11 + 7 / 11-2 and 2 / 3
=14-2 and 2 / 3
=11 and 1 / 3

How do 3, - 5, - 11 and 7 count as 24 o'clock

(1)-5-(-11){a}
(2)7-3{b}
(3) a*b=24

Four fifths of the reduction ratio and the ratio: three seventh
Liu Jun read a story book. On the first day, he read one third of the whole book. On the second day, he read the remaining quarter. There are 60 pages left to read. How many pages are there in this book?

4/5:3/7=4/5x7/3=28:15
Second question
60 (1-1 / 4) = 80 pages
80 (1-1 / 3) = 120 pages
A total of 120 pages