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
46 + 20 = ______
62 + 10 = ______
79 − 10 = ______
6 × 10 = ______
49 + 10 = ______
4 × 10 = ______
21 − 10 = ______
1 × 10 = ______
84 − 10 = ______
12 + 20 = ______
3 × 10 = ______
2 × 10 = ______
28 − 10 = ______
5 × 10 = ______
46 + 10 = ______
57 + 20 = ______
85 + 10 = ______
8 × 10 = ______
58 − 10 = ______
32 + 20 = ______
