directions:%20Work%20these%20horizontal%20questions%20that%20require%20many%20mathematical%20operations.%0AFollow%20the%20procedures%20you%20have%20learned.%20Show%20your%20work.%0A5+8-3%C3%976+4%C3%972=%0A8+6%C3%977-3%20%C3%97%207-4%20=%0A8.%0A10%20%C3%97%203%20+%207-29%20=%0A9.%0A4%20+%2016%20%C3%97%208%20+%2012%20-%204%20%C3%97%2019%20=