⑴学校买足球和篮球共用65.76元,已知买足球用了42.86元,买篮球用了多少钱?
⑵同学们采集树种子,一班采集了32.56千克,二班采集了38.45千克,两个班共采集多少千克?
⑶李老师买数学参考书用了24.28元,买语文参考书用了23.76元,他付给售货员50元,应找回多少钱?
⑷工人叔叔修路,第一天修了18.65米,第二天比第一天多修了5.6米,两天共修多少米?
⑸同学们去春游.每辆汽车运了48人,用3辆汽车运了2趟才把所有师生送去.春游的师生共有多少人?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2