간편 계산: 46 × 26 + 26 × 64 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 99 × 56 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 25 × 44 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp & nbsp; nbsp & nbsp; nbsp & nbsp; nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp;;

간편 계산: 46 × 26 + 26 × 64 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 99 × 56 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 25 × 44 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp & nbsp; nbsp & nbsp; nbsp & nbsp; nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp; nbsp & nbsp & nbsp;;


① 46 × 26 + 26 × 64 = 26 × (46 + 64) = 26 × (100 + 10) = 2600 + 260 = 2860 ② 99 × 56 = (100 - 1) × 56 = 5600 - 56 = 5600 - 56 = 5544 ③ 25 × 44 = 25 × (40 + 4) = 1000 + 100 ④ 83 × 101 - 83 × (101 - 1) = 83 × 100 = 8300



0. 78 × 98 =? 간편 한 연산


& nbsp;



0.25 곱 하기 19 에 0.75 곱 하기 25 의 간편 한 연산?


0.25 * 19 + 0.25 * 3 * 25 = 0.25 * 94 = 0.25 * 100 - 025 * 6 = 23.5