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
37 − 10 = ______
5 × 10 = ______
86 − 10 = ______
41 + 10 = ______
21 + 20 = ______
38 + 20 = ______
23 − 10 = ______
31 + 10 = ______
12 + 10 = ______
9 × 10 = ______
36 − 10 = ______
74 + 20 = ______
3 × 10 = ______
43 + 10 = ______
1 × 10 = ______
4 × 10 = ______
7 × 10 = ______
87 + 10 = ______
81 − 10 = ______
79 + 10 = ______
