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
55 + 20 = ______
36 − 10 = ______
9 × 10 = ______
33 + 20 = ______
47 − 10 = ______
3 × 10 = ______
34 + 10 = ______
43 + 20 = ______
94 − 10 = ______
2 × 10 = ______
53 + 20 = ______
72 − 10 = ______
7 × 10 = ______
26 + 20 = ______
44 + 20 = ______
1 × 10 = ______
52 − 10 = ______
32 + 20 = ______
5 × 10 = ______
66 + 20 = ______
