kelvin200995 kelvin200995 29-02-2024 Mathematics contestada Check your understanding 4. Copy and complete: 4.1 23 + 44 = +23=> 4.2 12 x 10 = 10 x 4.3 4.4 (18+7) + 3 = 18+ (+ 3) = 18+ 25(10-2) = × = 28 25 x 2 250