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
3 × 10 = ______
1 × 10 = ______
30 + 10 = ______
82 + 20 = ______
5 × 10 = ______
41 − 10 = ______
2 × 10 = ______
77 + 20 = ______
34 − 10 = ______
6 × 10 = ______
61 − 10 = ______
9 × 10 = ______
12 + 20 = ______
85 + 10 = ______
22 + 10 = ______
27 + 20 = ______
58 − 10 = ______
75 − 10 = ______
84 + 10 = ______
23 − 10 = ______
