B.. Find the missing number. Follow the sign and fill in the numbers in the boxes. 1. +3-___=+6 2.-10-___= -16 3.+21-___=+11 4.+12-___=+21 5. -54-___= -50 6.+100-___=+9 7.-19-____= -14 8.-17-___= -20 9.+23-___=+13 10.+4-____+7 pa answer po,need ko na talaga✨