How many square decimeters is half a square meter

How many square decimeters is half a square meter

One square meter is equal to 100 square decimeters. One second square meter is equal to 50 square decimeters

Find the rules and fill in the numbers 99, 98, 91, 90 (), 82, 75, (), (), ()
12、( )、24、( )、36、( )、( )、( )、( )、( )

99、98、91、90（ 83 ）、82、75、( 74 )、( 67 )、( 66 )
The rule is: odd items are reduced by 8 in turn; even items are reduced by 8 in turn
12、( 18 )、24、(30 )、36、(42 )、(48 )、(54 )、(60 )、(66 )
Rule: add 6 in turn

The greatest common factor of 77 and 91

77=7*11 91=7*13
seven

99|77 = what

Solution
99/77=9/7

Can you divide the four numbers 77, 91, 99 and 117 into two groups so that the product of each group is equal

91×99=77×117=9009

What is the simple calculation of 91 times 99 plus 91?

91*99+91=91（99+1）=9100

(1 / 143 + 1 / 77 + 1 / 91) divided by (20 / 99 + 1 / 9) - 2 / 91 =? Please use simple calculation!

(1/143+1/77+1/91)÷(20/99+1/9) - 2/91= [7/(11×13×7)+13/(77×13)+11/(91×11)]÷(20/99+11/99) - 2/91= 31/(11×13×7)÷31/(9×11) - 2/91= 1/(13×7×9) - 2/(13×7)= 1/(13×7×9) - 18/(13×7×9)= - 17/(1...

Simple operation of 77 ╳ 39 + 143 ╳ 56 + 91 ╳ 99?

11*7*13*3+13*11*7*8+13*7*99=
13*7*11*3+13*7*11*8+13*7*11*9=
91*11*(3+8+9)=20020

How to calculate 21 (1 / 4 × 7 / 25 / 1 / 10)

21÷（1/4×7/25÷1/10）=21÷（7/100÷1/10）=30

7 out of 12 * 5 out of 7
Simple calculation of 48048-12 + 88
Simple calculation of 13 / 23 * 24 + 13 / 24

1
four hundred and eighty point four eight
thirteen