-63 × ( 7 - 11 ) = 252
1) 7 - 11 = -4
2) -63 × (-4) = 252
9,9 × ( 3 - 5 ) = -19,8
1) 3 - 5 = -2
2) 9,9 × ( -2 ) = -19,8
-2,2 × ( 8 - 3 ) = -11
1) 8 - 3 = 5
2) -2,2 × 5 = - 11
( 26 - 11 ) × ( -0,4 ) = -6
1) 26 - 11 = 15
2) 15 × ( -0,4 ) = -6
( 32 - 40 ) × 3,5 = -28
1) 32 - 40 = -8
2) -8 × 3,5 = -28
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Verified answer
-63 × ( 7 - 11 ) = 252
1) 7 - 11 = -4
2) -63 × (-4) = 252
9,9 × ( 3 - 5 ) = -19,8
1) 3 - 5 = -2
2) 9,9 × ( -2 ) = -19,8
-2,2 × ( 8 - 3 ) = -11
1) 8 - 3 = 5
2) -2,2 × 5 = - 11
( 26 - 11 ) × ( -0,4 ) = -6
1) 26 - 11 = 15
2) 15 × ( -0,4 ) = -6
( 32 - 40 ) × 3,5 = -28
1) 32 - 40 = -8
2) -8 × 3,5 = -28