Penjelasan dengan langkah-langkah:
3.
a. +3-2 = +1 = 1
b. +2-1 = +1 = 1
c.+2-1 = +1 = 1
d. +2-1 = +1 = 1
4.
a. 5 × 4 = 4+4+4+4+4 = 20
b. 3 : 4 = ¾ = 0,75
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Penjelasan dengan langkah-langkah:
3.
a. +3-2 = +1 = 1
b. +2-1 = +1 = 1
c.+2-1 = +1 = 1
d. +2-1 = +1 = 1
4.
a. 5 × 4 = 4+4+4+4+4 = 20
b. 3 : 4 = ¾ = 0,75