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
70 − 10 = ______
29 + 10 = ______
62 + 20 = ______
7 × 10 = ______
35 − 10 = ______
69 + 20 = ______
6 × 10 = ______
45 + 20 = ______
61 − 10 = ______
46 + 20 = ______
4 × 10 = ______
5 × 10 = ______
3 × 10 = ______
81 + 20 = ______
9 × 10 = ______
81 − 10 = ______
37 + 10 = ______
31 − 10 = ______
82 + 10 = ______
70 + 10 = ______
