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
64 + 20 = ______
6 × 10 = ______
30 + 10 = ______
5 × 10 = ______
73 − 10 = ______
29 + 20 = ______
22 − 10 = ______
81 + 20 = ______
7 × 10 = ______
45 + 10 = ______
62 − 10 = ______
74 + 20 = ______
56 + 10 = ______
23 − 10 = ______
54 + 20 = ______
70 + 10 = ______
38 + 10 = ______
9 × 10 = ______
36 + 10 = ______
56 − 10 = ______
