1.6 decimeter = 0.6m 5 decimeter = 0.5m2. 5 decimeter = 0.5m21.142.24 = 2x2x3x3.

0.6x5x2+0.5x5x21.2x0.5x4 answer:. 9=3x3

=6+5 =0.6x4 36=2x2x3x3

= 1 1 (m2) =2.4 (m2) a: ............

1 1x8=88 (square meters) Answer: ......

Answer: ... square meters.

Three1.120 = 2x2x5

Four 1. (+36)+(-36)=0

-0.4+2.6=2.2

(-2.4)×5÷0. 1=- 120