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
34 + 20 = ______
84 − 10 = ______
60 − 10 = ______
30 + 10 = ______
28 + 10 = ______
2 × 10 = ______
72 + 20 = ______
8 × 10 = ______
7 × 10 = ______
61 − 10 = ______
33 − 10 = ______
78 + 10 = ______
85 − 10 = ______
32 + 20 = ______
89 + 10 = ______
4 × 10 = ______
9 × 10 = ______
3 × 10 = ______
45 + 20 = ______
24 + 10 = ______
