Chains - addition and subtraction up to 50


(1) Write the required values ​​in the circles. Pay attention to the direction of the arrows.

4  +7 11  -4  + 8  +5   +6  -10  +7 -4 8  +3 11  -8  + 9  +7  +2 -5  +3  -8 15  +6 21  -2  + 10  +8  +4 -3  +6 13  +6  -7  + 9  +4  +10 -8  +5 15  +5 20  -7  + 10  +2  +8 -6  +5 16  +5  -4  + 9  +7  +8 -6  -3 18  +6  -5  -4  +9  +10  -6  +8 -6