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
59 + 20 = ______
8 × 10 = ______
9 × 10 = ______
23 − 10 = ______
80 + 10 = ______
68 − 10 = ______
59 + 10 = ______
85 − 10 = ______
62 + 20 = ______
49 + 10 = ______
34 + 20 = ______
1 × 10 = ______
89 + 10 = ______
89 + 20 = ______
12 + 10 = ______
4 × 10 = ______
22 + 10 = ______
3 × 10 = ______
31 − 10 = ______
32 + 10 = ______
