[180+19×(106+74)]÷60 40.65-(20.38-16.85)
87×47+53×87 73.72-(36.28+3.72)
①75-60=15 15×2=30 300÷30=10综合算式:
②▲×■=● △-□=○ ●÷○=◆ 综合算式:
60÷4+8×2=10 60÷4+8×2=3
先减再乘最后除:3×80-40÷5
先除再减最后乘:3×80-40÷5
先减再除最后乘:3×80-40÷5
①76.15−9.7+11.3
②78×4×2×125
③25×404
④[(1200-900)÷50×2]×24
⑤4.9×69+4.9×32−4.9
⑥32000÷125