直接写出得数. 4+4.73=______ 3 8 ÷9=______ 1 2 × 4 5 ÷ 1 2 × 4 5 =______ 4 2 3 -4 5 12 =______ 375÷1 3 8 =______ 1 3 ×2÷ 1 3 ×2=______ 36+0.4=______ 5×32×2.5=______ 1÷0.9=______ 8×(12+0.5)=______ 9- 5 9 + 4 9 =______ 5 8 ÷ 8 5 =______ 1 3 - 1 4 =______ 1÷ 2 3 =______ 5 1 8 +0.8 =______ 6+6- 9 2 + 9 2 =______ 4× 7 15 =______ 1÷ 1 2 =______ 2 3 × 1 6 =______ 7 8 ÷7 =______ 5 2 5 +0.3 =______ 5÷ 5 3 =______ 1 6 × 3 8 =______ 3 5 - 1 2 =______ 35+0.4=______ 8×(12+0.5)=______ 4×0.8×2.5×12.5=______ 21- 3 4 × 1 2 - 5 8 =______ 8 9 ×[ 3 4 -( 7 16 -0.25)] =______ 49 5 + 499 5 + 4999 5 + 3 5 =______.