4.2.1 Decimals, PT3 Practice


Question 1:
62.4 – 36.02 + 12.6 =

Solution:



Question 2:
4.76 × 7.2 ÷ 0.3 =

Solution:
4.76×7.2÷0.3 =34.272÷0.3 = 34.272 0.3 = 34.272×10 0.3×10 = 342.72 3 =114.24





Question 3:
0.12 × (5.9 – 1.33) ÷ 0.8 =

Solution:
0.12×( 5.91.33 )÷0.8 =0.12×4.57÷0.8 =0.5484÷0.8 = 0.5484 0.8 = 0.5484×10 0.8×10 = 5.484 8 =0.6855




Question 4:
14.83 + (20.04 – 10.68) ÷ 1.8 =

Solution:
14.83+( 20.0410.68 )÷1.8 =14.83+9.36÷1.8 =14.83+ 9.36×10 1.8×10 =14.83+ 93.6 18 =14.83+5.2 =20.03



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