Fill in the Blanks Chronomath 6 CE2Online version Calcul mental - MHM Chronomaths 6 by Patricia B 1 200 + 200 = 5 x 5 = 12 x 10 = Double de 20 : 14 + 14 = 1 400 + 500 = 164 - 3 = 7 200 + 7 = 6 x 7 = 8 x 7 = 500 + = 1000 110 + 90 = 30 x 20 = 458 + 9 = 7 + 7 + 7 = 4 000 + 78 = Double de 15 : 140 - = 132 5 x = 35 250 + 350 = 361 x 10 = 250 x 20 = 142 x = 1420 1253 + 19 = 800 - 7 = 7 x 7 = Double de 32 : 1450 - = 1 410 4 230 - 50 = 15 x 7 =