Easy Arithmetic Puzzles

#1319: 3 _ 6 _ 4 _ 3 = -1 easy #1320: 3 _ 6 _ 4 _ 4 = 6 easy #1321: 3 _ 6 _ 4 _ 5 = 7 easy #1322: 3 _ 6 _ 4 _ 5 = -3 easy #1323: 3 _ 6 _ 4 _ 6 = -4 easy #1324: 3 _ 6 _ 4 _ 7 = 9 easy #1325: 3 _ 6 _ 4 _ 7 = -5 easy #1334: 3 _ 6 _ 5 _ 3 = -7 easy #1337: 3 _ 6 _ 5 _ 2 = 5 easy #1340: 3 _ 6 _ 6 _ 9 = -1 easy #1350: 3 _ 6 _ 7 _ 2 = 7 easy #1360: 3 _ 6 _ 8 _ 1 = 3 easy #1361: 3 _ 6 _ 8 _ 2 = 6 easy #1362: 3 _ 6 _ 8 _ 3 = 1 easy #1366: 3 _ 6 _ 8 _ 5 = -1 easy #1369: 3 _ 6 _ 8 _ 6 = -2 easy #1371: 3 _ 6 _ 8 _ 7 = -3 easy #1376: 3 _ 6 _ 9 _ 3 = 1 easy #1379: 3 _ 6 _ 9 _ 1 = 3 easy #1380: 3 _ 6 _ 9 _ 2 = 1 easy #1381: 3 _ 6 _ 9 _ 3 = -1 easy #1384: 3 _ 6 _ 9 _ 4 = 8 easy #1400: 3 _ 7 _ 2 _ 6 = 7 easy #1403: 3 _ 7 _ 3 _ 9 = 7 easy #1419: 3 _ 8 _ 2 _ 4 = 7 easy #1420: 3 _ 8 _ 2 _ 4 = -1 easy #1423: 3 _ 8 _ 2 _ 6 = 8 easy #1426: 3 _ 8 _ 2 _ 2 = 6 easy #1429: 3 _ 8 _ 2 _ 5 = 7 easy #1431: 3 _ 8 _ 2 _ 6 = 6 easy #1432: 3 _ 8 _ 2 _ 6 = 2 easy #1433: 3 _ 8 _ 2 _ 7 = 5 easy #1435: 3 _ 8 _ 2 _ 8 = 4 easy #1436: 3 _ 8 _ 2 _ 9 = 3 easy #1439: 3 _ 8 _ 3 _ 6 = 7 easy #1442: 3 _ 8 _ 3 _ 4 = -3 easy #1443: 3 _ 8 _ 3 _ 6 = -1 easy #1445: 3 _ 8 _ 3 _ 9 = 8 easy #1446: 3 _ 8 _ 3 _ 2 = 4 easy #1451: 3 _ 8 _ 4 _ 3 = -3 easy #1457: 3 _ 8 _ 4 _ 3 = 3 easy #1458: 3 _ 8 _ 4 _ 4 = 2 easy #1460: 3 _ 8 _ 4 _ 5 = 1 easy #1462: 3 _ 8 _ 4 _ 7 = -1 easy #1464: 3 _ 8 _ 4 _ 8 = -2 easy #1467: 3 _ 8 _ 4 _ 4 = 6 easy #1475: 3 _ 8 _ 6 _ 3 = -1 easy #1478: 3 _ 8 _ 6 _ 1 = 3 easy