78 加法 20 等于多少？

78 + 20 = 98

78加法20 等于 98

竖式演算

78+2098

验算

  • 用减法验算：98 − 20 = 78
  • 用减法验算：98 − 78 = 20

相关题目

78 + 19 = 97 78 + 21 = 99 78 + 22 = 100 78 + 18 = 96 78 + 23 = 101 78 + 17 = 95 78 + 24 = 102 78 + 16 = 94 77 + 20 = 97 79 + 20 = 99 76 + 20 = 96 80 + 20 = 100 75 + 20 = 95 81 + 20 = 101 74 + 20 = 94 82 + 20 = 102 1 + 97 = 98 2 + 96 = 98 3 + 95 = 98 4 + 94 = 98 5 + 93 = 98 6 + 92 = 98 34 + 61 = 95 23 + 76 = 99 14 + 2 = 16 64 + 32 = 96 7 + 71 = 78 10 + 77 = 87 100 - 2 = 98 14 × 7 = 98