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 = ______
85 + 20 = ______
4 × 10 = ______
26 + 20 = ______
2 × 10 = ______
36 − 10 = ______
98 − 10 = ______
87 − 10 = ______
15 + 20 = ______
55 + 10 = ______
11 + 20 = ______
1 × 10 = ______
84 + 20 = ______
62 + 10 = ______
7 × 10 = ______
58 − 10 = ______
45 − 10 = ______
20 + 20 = ______
62 − 10 = ______
20 + 10 = ______
