The sixth grade mathematics simple operation (with the answer) is urgent! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

Calculate in a simple way.

4+3.2+5+6.8 25× (8× 0.4 )×1.257 and 4/ 15-(2 and 4/15-/23)

= 4+5+(3.2+6.8) = 25× 0.4× (8×1.25) = 7 and 4/ 15-2 and 4/ 15+1/23.

=9+ 10 = 10× 10 =5+ 1/23

= 19 = 100 =5 and 1/23.

(1112+7/18+5/24) × 72 93.5÷ 3 and1/2÷2/716.

= 1 1/ 12×72+7/ 18×72+5/24×72 =93.5÷7/2× 7/2 = 16÷5/2

=66+28+ 15 =93.5 = 16×2/5

= 109 =32/5

1 125-997 998+ 1246+9989 (8700+870+87)÷87

= 1 125- 1000+3 = 1000-2+ 1246+ 10000- 1 1 =8700÷87+870÷87+87÷87

= 125+3 = 1 1000+ 1246- 13 = 100+ 10+ 1

= 128 = 12233 = 1 1 1

125×8.8 1.3+4.25+3.7+3.75 17. 15-(3.5-2.85)

= 125×8+ 125×0.8 = 1.3+3.7+(4.25+3.75) = 17. 15+2.85-3.5

= 1000+ 100 =5+8 =20-3.5

= 1 100 = 13 = 16.5