A.加1 | B.加9.6 | C.加7.3 |
A.2.4×2×9 | B.9.6×9÷2 | C.5×9-0.2×9 | D.4.4×9+0.2×9 |
A.11116+9876×9 | B.1116+9876×9 | C.11116+98765×9 |
A.34.34;48.48;67.67;84.84 |
B.43.43;48.48;67.76;84.84 |
C.343.4;484.8;676.7;844.8 |
A. | B. | C. | D. |
A.9.8×6.7÷2 | B.0.7×7×6.7 | C.0.7×0.7×67 | D.5×6.7-6.7 |
A.219999.78÷0.4=54999.45 |
B.2199.78÷0.4=54999.45 |
C.21999.78÷0.4=5499.945 |
D.219999.78÷0.4=549999.45 |
A.7×9-0.1×9 | B.2.3×3×9 | C.6×9+9 |
A.4444.44 | B.5555.55 | C.6666.66 |
A.6×0.8×9 | B.9.6÷2×9 | C.5×9-0.2×9 | D.2×2+0.8×9 |