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
30 − 10 = ______
56 + 20 = ______
47 + 10 = ______
45 + 10 = ______
9 × 10 = ______
55 − 10 = ______
45 + 20 = ______
3 × 10 = ______
57 + 20 = ______
22 − 10 = ______
66 + 20 = ______
92 − 10 = ______
95 − 10 = ______
60 + 10 = ______
34 + 20 = ______
84 + 20 = ______
62 − 10 = ______
2 × 10 = ______
27 + 10 = ______
75 + 20 = ______
