Froggy Jumps Quick Subtraction ChallengeVersion en ligne Fast math subtraction practice. par Kholoud Kafawin 1 What is 423 - 178? a 260 b 235 c 245 2 What is 423 - 178? a 260 b 235 c 245 3 What is 512 - 286? a 226 b 236 c 216 4 What is 704 - 459? a 245 b 235 c 255 5 What is 631 - 247? a 367 b 384 c 394 6 What is 580 - 365? a 225 b 205 c 215 7 What is 300 - 120? a 180 b 190 c 160 8 What is 999 - 444? a 555 b 545 c 565 9 What is 700 - 300? a 350 b 400 c 450 10 What is 520 - 210? a 300 b 320 c 310 11 What is 480 - 199? a 291 b 271 c 281