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
31 − 10 = ______
50 + 10 = ______
66 − 10 = ______
62 + 20 = ______
9 × 10 = ______
70 + 20 = ______
42 + 10 = ______
48 − 10 = ______
85 + 10 = ______
8 × 10 = ______
1 × 10 = ______
13 + 20 = ______
3 × 10 = ______
59 − 10 = ______
54 − 10 = ______
62 + 10 = ______
49 + 20 = ______
85 + 20 = ______
95 − 10 = ______
89 − 10 = ______
