Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
41 + 10 = ______
2 × 10 = ______
69 + 10 = ______
6 × 10 = ______
1 × 10 = ______
63 + 20 = ______
36 + 20 = ______
44 − 10 = ______
95 − 10 = ______
45 − 10 = ______
26 + 20 = ______
9 × 10 = ______
39 − 10 = ______
46 + 10 = ______
88 + 20 = ______
8 × 10 = ______
17 + 20 = ______
31 + 20 = ______
89 + 10 = ______
38 + 10 = ______
