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
61 − 10 = ______
9 × 10 = ______
1 × 10 = ______
76 − 10 = ______
82 + 20 = ______
41 − 10 = ______
2 × 10 = ______
37 − 10 = ______
85 + 10 = ______
24 + 10 = ______
5 × 10 = ______
72 + 10 = ______
81 + 20 = ______
41 + 10 = ______
4 × 10 = ______
62 + 20 = ______
46 − 10 = ______
16 + 10 = ______
3 × 10 = ______
58 + 10 = ______
