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
98 − 10 = ______
94 − 10 = ______
13 + 20 = ______
65 + 20 = ______
22 + 10 = ______
5 × 10 = ______
6 × 10 = ______
3 × 10 = ______
41 − 10 = ______
54 + 20 = ______
77 − 10 = ______
36 + 10 = ______
4 × 10 = ______
68 + 20 = ______
26 − 10 = ______
27 + 10 = ______
68 − 10 = ______
44 − 10 = ______
12 + 10 = ______
43 − 10 = ______
