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
56 − 10 = ______
20 + 10 = ______
26 − 10 = ______
7 × 10 = ______
4 × 10 = ______
35 + 20 = ______
24 − 10 = ______
3 × 10 = ______
29 + 10 = ______
42 − 10 = ______
28 + 10 = ______
81 + 10 = ______
53 − 10 = ______
38 − 10 = ______
9 × 10 = ______
50 + 10 = ______
5 × 10 = ______
68 + 10 = ______
8 × 10 = ______
66 + 20 = ______
