How to divide 32.5 by 0.25 minus 1.28

How to divide 32.5 by 0.25 minus 1.28

=32.5÷（1/4）-1.28
=32.5X4-1.28
=130-1.28
=128.72

How to calculate 6 △ 1.25?

Hello
6÷1.25
=6x8÷（1.25x8）
=48÷10
=4.8
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Simple calculation: 1.25 * 1.4 + 6.6 * 0.25

Original formula = (1.25 × 0.8) × 1.75 + 1.65 × (4 × 0.25)
＝1×1.75＋1.65×1
＝1.75＋1.65
＝3.4