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小学四年级口算题：两位数的四则运算

(1) 77.03 + 15.59 =

(2) 88.26 + 11.03 =

(3) 99.14 - 78.82 =

(4) 89.22 - 29.19 =

(5) 40.77 + 56.86 =

(6) 44.68 - 10.81 =

(7) 34.59 - 26.06 =

(8) 94.59 - 13.43 =

(9) 14.06 + 19.46 =

(10) 61.92 + 22.64 =

(11) 27.64 + 22.16 =

(12) 99.03 - 15.76 =

(13) 44.47 + 12.52 =

(14) 72.99 - 68.91 =

(15) 36.6 + 24.81 =