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
15 + 10 = ______
9 × 10 = ______
37 − 10 = ______
4 × 10 = ______
16 + 20 = ______
73 + 20 = ______
72 − 10 = ______
14 + 10 = ______
5 × 10 = ______
67 − 10 = ______
88 + 20 = ______
46 − 10 = ______
44 + 10 = ______
8 × 10 = ______
56 + 20 = ______
61 + 20 = ______
6 × 10 = ______
59 + 20 = ______
22 + 10 = ______
67 + 20 = ______
