( 1) 1.33+ 1.67 =(2)20.76 x 1 1 =

(3) 1.46+8.64 =(4) 1 1x4x 0.25 x 0.8 =

(5) 12+38-0. 12= (6) 1000÷ 12.5=

(7) 1.878+2. 132= (8)3.00 12÷ 1.83=

(9) 1÷ 10x 1.25( 10)3.33-2.25+ 1.78 =

2. Equation

( 1)2.2x = 0. 1 1(2) 1.25 x+ 1.2 = 1.2

(3) 1. 1 1 1x = 8.888(4) 1.39+ 1.28(x+5)= 20.59

5x+7=62 (6)3x+24+ 18=240

(7)5x = 63- 18(8)x÷4+3 = 15.3

(9) 12(x+ 1.2)= 1 14( 10)6 = 3x-x

3. Non-type calculation

( 1)( 1 14- 1 14x 0.25)+ 18 =

(2)78.88+(78.88-6.75)=

(3) 1285 x( 1285-486.7)+ 125 =

(4)67.85-[(67.85+2)x 0. 1 1]=

(5)65 degrees (65X 125-66)