Current location - Training Enrollment Network - Mathematics courses - Optimal training of classic synchronous learning guidance in primary schools for a hundred years; The fifth grade mathematics volume 1 4 1 and 42 pages all the answers! ! Urgent? ! ! ! !
Optimal training of classic synchronous learning guidance in primary schools for a hundred years; The fifth grade mathematics volume 1 4 1 and 42 pages all the answers! ! Urgent? ! ! ! !
4 1: Look from the left, from the front and from above.