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 = ______
34 + 20 = ______
29 + 20 = ______
70 + 10 = ______
11 + 20 = ______
25 − 10 = ______
8 × 10 = ______
6 × 10 = ______
7 × 10 = ______
66 − 10 = ______
5 × 10 = ______
34 − 10 = ______
28 + 10 = ______
56 − 10 = ______
63 + 20 = ______
95 − 10 = ______
99 − 10 = ______
24 + 20 = ______
4 × 10 = ______
41 − 10 = ______
