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
2 × 10 = ______
1 × 10 = ______
45 + 10 = ______
7 × 10 = ______
66 + 10 = ______
6 × 10 = ______
8 × 10 = ______
14 + 20 = ______
37 + 20 = ______
88 + 10 = ______
80 + 10 = ______
25 + 10 = ______
33 − 10 = ______
46 − 10 = ______
27 + 10 = ______
28 − 10 = ______
83 + 10 = ______
3 × 10 = ______
39 + 10 = ______
22 − 10 = ______
