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
27 + 10 = ______
3 × 10 = ______
2 × 10 = ______
22 + 10 = ______
1 × 10 = ______
55 + 20 = ______
64 + 10 = ______
28 + 20 = ______
66 + 20 = ______
38 + 10 = ______
84 − 10 = ______
54 − 10 = ______
88 + 20 = ______
37 − 10 = ______
49 − 10 = ______
74 + 10 = ______
9 × 10 = ______
56 + 10 = ______
43 − 10 = ______
7 × 10 = ______
